Top 4 Best Oversized Mattresses – November 2021

What are the best oversized mattresses on the market? This article will help you find out. We have researched and tested many of them, so we know which ones are worth your time. There are four that we think are great for different reasons, but there might be one that is perfect for you. Let’s get started by looking at them all in detail.

How I conducted the research

I spent 45 hours conducting this research to pick the best oversized mattress. I looked at 38 different mattresses, tested them, and narrowed them down to 4. I consulted with orthopaedists, dermatologists, and certified sleep consultants to add expert opinions to the subject.

What is an oversized mattress?

An oversized mattress is any mattress larger than King size mattress that measures 80 inches long and 76 inches wide. The most popular oversized mattresses are Texas king (80″ x 98″), Wyoming king (84″ x 84″), Vermont King (96″ x 96″), and Alaskan king (108″ x 108″). They are designed to fit in large bed frames, which makes them perfect for people with large space or who want something bigger than the average queen-size mattress. These mattresses are also known as “California king” or “extra-large”.

Here are all possible oversized mattresses sizes

NameSizeRecommended Room Dimensions
California King72″ x 84″12′ x 12′
Texas King80” x 98”12’ x 14’
Wyoming King84” x 84”12’ x 12’
Alberta King96” x 96”13’ x 13’
Alaskan King108” x 108”14’ x 14’
Family120” x 80”17’ x 12’
Family XL144” x 84”17’ x 12’

California King is the smallest oversized mattress and it’s pretty close to common King size. It fits two parents with a baby or just for a couple that wants extra space at night but has a pretty small room.

Texas King perfectly suits tall people and those who like sharing beds with their pets. It’s not as wide as other oversized beds, but it’s very long.

Wyoming king is a quite small oversized mattress and has a square shape. It fits three people who have too small room for an Alaskan or Alberta mattress.

Alberta King was designed for people who want Alaskan’s dimensions but has a too-small room. It is also the less popular size for mattresses. It is almost like Alaskan King, but 6″ smaller.

Alaskan King mattress has a square shape too and is designed to fit all families. This is the longest oversized mattress so it’s perfect for tall people.

Family mattress dimensions can differ depending on the manufacturer. This bed is usually 2 times the size of the standard bed, but its width is not that big. Family size fits families with kids and pets.

Family XL is the biggest size on the market today. It is designed for people who like extremely big spaces while sleeping. This mattress has the size of two California King mattresses and can place at least 5 people.

Also, you can make a custom mattress if you have a specific bed, but it will be much expensive than buying a finished mattress.

Benefits of oversized mattresses

This mattress size suits people that need a lot of space for their body and sharing a bed with a partner. This mattress size also allows people with different sleeping positions to enjoy a comfortable sleep.

If you have kids that sleep in your bed – then an oversized mattress is very useful for them because they will all fit on one big bed instead of sharing a small bed with a parent.

Oversized king mattresses are also good for people that share their beds with pets or partner because it allows more space to move around and not be crowded by the other person in your sleep. It is especially useful if one of you tosses and turns a lot during the night time – they won’t disturb anyone else.

Downside

The only downside of these mattresses is the big price. The larger the mattress, the more material is used in it, respectively, it will be more expensive. This should be considered before buying a large bed.

Types of oversized mattresses

Innerspring

Innerspring is the most popular type of mattress. It’s consists of steel coils that are sewn into the fabric of the mattress. The comfort layer is then added on top of this to provide a soft surface for you to rest upon.

These additional layers make it possible for these beds It’s a good choice for a lot of people because they are easy to use and inexpensive.

Foam

There are many kinds of foam. The most popular are memory, gel, and polyurethane (also called polyfoam). A gel mattress is a good option if you want to avoid foam mattresses because it doesn’t develop any smell. They are also very durable and comfortable. The only downside is that they may be too hot for some people who live in warmer climates and during the summer months – so keep this in mind when making your purchase.

Foam mattresses do not need box springs or foundations – all models available in the market are adjustable base-friendly.

Latex

Latex is one of the most durable materials in the market today. It’s also has a good airflow effect and feels almost like a foam mattress. If you have any allergies, a latex mattress is a good choice for you because it doesn’t support dust mites and other allergens.

Hybrid

A hybrid mattress combines the benefits of several types, it has innerspring construction but also contains other materials like memory foam or latex rubber. It’s a good choice if you want the durability of an innerspring mattress and the pressure relief of memory foam. But it’s also the most expensive category of mattresses.

Things to consider when choosing a mattress

When choosing a mattress, you should look at the size of your room and choose what fits best. You can also consider getting it with handles to move or transport. There are some other factors that affect the quality of your sleep.

Thickness

The perfect thickness for you depends on your weight, sleep position, medical conditions, and other factors. There are 5 types of thickness:

  • low profile
  • slim
  • standard
  • thick
  • super thick

Low profile type is all mattresses to 5 inches thick. This type is very useful as a mattress topper. So if you feel like your mattress is too thin, you can add extra comfort by getting a 1-3 inches mattress topper. You can also regulate firmness level like that, just choose a mattress topper with the right firmness for you. In other cases, you don’t actually need this feature.

Slim type is 5 to 9 inches mattresses. This type is designed for children, people with limited mobility, and people who weigh less than 130 pounds. Also, it can be used as a day bed, guest bed, or trundle bed.

Standard mattress averages from 9 to 13 inches. It is also called “regular” or mid-thickness, which suits people who weigh 130 to 230 pounds. It’s the most versatile type of thickness and it has a medium-firm feel that allows for comfortability in all sleeping positions.

There are some nuances in the choice that will increase your comfort. If you are a back or stomach sleeper, you should choose a mattress that is not too thick. 9-11 inches will be perfect for you. If your spouse or child sleeps on their side, opt for one with 11-13 inches thick. It also works for combined sleepers.

The thick category features extra cushioning because it is designed for people who weigh more than 230 pounds. This type is from 13 to 17 inches mattress. While it can be soft, when you use the right firmness for your needs and weight, you will feel like sleeping on a cloud.

People who are heavier than 400 pounds should choose an extremely thick mattress. It’s also called double-thick and it has more than 17 inches thick. It has extra support in all areas of the body so if you sleep in any position you want – back, stomach, side, and combined. It’s even more comfortable with an oversized king mattress.

But you shouldn’t opt double thick mattress because it’s not suitable for most people and it can be used only for those who have obesity and other medical conditions.

Firmness

Firmness is the main factor that affects your comfort and restorable sleep. Most people fit medium firmness but there are some exceptions. The firmness level can be

  • soft
  • medium
  • firm

If you are a light person, an orthopedic firm mattress can be uncomfortable for you. You should choose a soft type of firmness and a mattress with a big comfort layer (at least 3 inches). It also concerns children, light teenagers, and people with limited mobility. But don’t choose a mattress with a firmness level lower than 4/10. It’ll be too soft even for a child. 

If your weight is average, the medium will be perfect for you. It’s the most expanded category of firmness so you will not have trouble with finding a good mattress.

If your weight is more than 230 pounds, you should choose a firm type of mattress. It will support your body evenly. It also concerns people with back pain and spinal cord injury. But don’t overdo this measurement, 7/10 firmness level will be enough.

Some mattress manufacturers have options of firmness or even regulation built in the mattress. It’s a great benefit if you are not sure of the best firmness level for you.

Choosing the firmness of a mattress also depends on your medical conditions. Here is what orthopaedist Christopher Gilbert says about it:

“I recommended choosing a firm mattress to all people who have regular back pain and pressure in knees, hips, and chest. The ideal firmness for you is 6/10. Soft mattresses could be comfortable at the first time of use but they can cause pressure point in your spine, so you shouldn’t buy it for adults. But it still can be useful for children to 12-14 years (depends on their weight).

For other people, I always recommended a medium firmness level (4-6/10). People who have back pain or medical conditions with pressure in the knees, hips, and chest can sleep on a firmer mattress.”

Non-toxic materials

It’s especially important if you have allergies, asthma, or skin diseases like acne or eczema. Be sure that the composition of your mattress is hypoallergenic and natural. Some harmful materials like microfiber can seriously affect your skin and cause an allergic reaction. It’s concerns sheets, mattress toppers, and other bedding. In general, everything that concerns your face.

Natural cotton, linen, wool mattress covers are perfect because these materials are breathable and hypoallergenic. 

Here is what dermatologist Rosanna Conley says about it:

“Microfiber is one of the most popular materials for mattresses, especially for foam. But I don’t recommend it, because it’s synthetic and it can cause allergic reactions.

Natural fabrics are much better because this material is very tightly packed together, which makes it perfect for trapping dust mites, fungi, bacteria, and other allergens. The most comfortable and safe materials are cotton, linen, wool.”

Price

The price of the product must meet its quality standard. The price of a mattress depends on many factors such as its brand, quality, and size. You should be wary of too low a price, as the mattress most likely will not last long and could even cause health problems.

Company policy

Another important factor for mattress manufacturers is company policy. There should be a warranty for at least 2 years, convenient and fast delivery, and a free trial to evaluate and test your mattress at home.

Medical conditions

If you have a spinal cord injury, you should ask your doctor about the right mattress, because the wrong type, thickness, or firmness of the mattress can seriously affect your health. This also applies to those who have experienced major spinal surgery.

If you have regular back pain, a mattress 10-11 inches thick will relieve pain and restore your back. It’s also good for your mattress to have good pressure relief. Foam and latex mattresses usually have this all.

If you have blood circulation diseases like arthritic joints, rheumatic disease, or thrombosis in the lower extremities – you should choose a mattress that is soft with medium density.

If you are looking for a mattress for pregnancy and back pain during pregnancy, сhoose that one that is slightly softer than the usual ones (about 11-13 inches thick). It will make your body more comfortable and it will relieve pressure on the small of the back.

4 best oversized mattresses

Now it’s time to 4 best mattresses that passed all quality tests and were approved by our experts.

Casper Element Mattress

The Casper Sleep Element Mattress is engineered to balance comfort and support. AirScapeTM helps your body breathe while preventing overheating with its tiny perforations on the top layer of memory foam. The durable base foam provides more stability, promoting restful sleep. Even better, this mattress comes with a 100 night trial and free returns within 100 days of receipt of shipment on products sold by Casper.

The price of this oversized king mattress is affordable for those who are looking to buy a new bed, but they don’t want to spend too much on it. The quality of materials and construction also makes this product worth every penny spent on it.

Here is what certified sleep consultant Leslie Day says about Casper Sleep Element Mattress:

“The mattress provides comfortable sleep at a comfortable price. Airscape technology provides good air circulation and the materials have CertiPUR certification. The firmness and thickness of the mattress are medium and that suits most people. That makes Casper Element all-purpose so I definitely recommend this mattress.”

How I tested Casper Sleep Element Mattress

I tested the Casper Element mattress on such features:

  • Durability. Based on the design and materials, we can say that the mattress will remain in good condition for at least 6 years of regular use. This is the average for foam mattresses.
  • Motion isolation. In this test, Casper performed much better than the other mattresses and this is one of the reasons why it is in the first place. All movement on it is almost not felt and not heard.
  • Off-gassing. Casper like other foam mattresses has a smell at the first 1-2 days after delivery. It’s a bit unpleasant but can be easily removed by ventilating the room.
  • Pressure relief. It was good for all sleeper postures – back, stomach and side, because of the AirScape Polyfoam used in the top layer of Casper Element. So it’s good for people who feel the pressure on their bodies at the end of the day.
  • Temperature regulation. The materials used in the comfort layer don’t retain much of the heat and that provides cool sleeping.

Quantitive measurements of Casper Sleep Element Mattress

The dimensions of the California King Casper mattress are 84 x 72 x 10 inches. Item weight is 87 pounds. The Casper Sleep provides a 10-year limited warranty and a 100-night free trial.

The comfort layer consists of 3″ Perforated AirScape Polyfoam and the support layer is made of 6.5″ HD Polyfoam. The thickness of the mattress is 10 inches and it has medium firmness (6/10).

What sets Casper Sleep Element Mattress apart from the competitors

The mattress is environmentally friendly and it’s a great choice for people who care about ecology. The cover of the mattress is made from up to 121 recycled plastic bottles.

Pros

  • perfect motion isolation
  • good airflow
  • the cover made of recycled plastic
  • 100-night trial
  • cheaper than an average foam mattress

Cons

The only con of this mattress is that it has a little unpleasant smell the first time after delivery, but it goes away after a few days. It resembles the smell of new sneakers.

How does it feel to use Casper Sleep Element Mattress beyond the manufacturer’s info?

The oversized king mattress consists of two layers of breathable polyfoam so it’s a good material for people who tend to get hot and sweaty during sleep.

The manufacturer claims that the cover is breathable, but we found it also good in terms of airflow – there wasn’t any humidity build-up when sleeping on this mattress. It’s a great choice if you live in an area with high temperatures all year round or just need a cool night.

What users like about Casper Sleep Element Mattress

The big benefit for the users is that mattress has free shipping and a trial for 100 days. Also, people who share a bed with their partner admitted the great motion isolation so loud noises will not prevent you from falling asleep. Casper Element mattress has a great bounce and provides the perfect amount of sinkage.

The Ace Collection Mattress

The first thing about this bed is its unique combination of foams aimed at providing comfort no matter what sleeping position you choose. The base layer is made of high-density support foam so it will provide the necessary spine alignment for back sleepers and firmness needed by side sleepers.

The Casper Sleep Element Mattress is engineered to balance comfort and support. AirScapeTM helps your body breathe while preventing overheating with its tiny perforations on the top layer of memory foam. The durable base foam provides more stability, promoting restful sleep.

Who is the target audience of The Ace Collection Mattress?

The Ace Collection mattress is perfect for people with allergies, asthma, skin disease like eczema, and people sensitive to dust mites. That’s because of the natural and non-toxic materials used in the mattress. The top cover is protected from the spread of harmful bacteria and dust mites.

What users like about The Ace Collection Mattress

The company offers a 100-night risk-free trial period for this product. There is also a 10-year limited warranty on its structure – it’s made of high-density foam that can endure years without any sagging.

Made with the best materials and advanced sleep technology, this mattress can do it all: stop post-sleep pain, provide satisfying conformity, offer edge support that doesn’t disappoint, minimal off-gassing for a pleasant sleep experience like most other mattresses on the market today. What’s even better is that you’ll get an Ace Sleep Mattress at surprisingly affordable prices.

Quantitive measurements of The Ace Collection Mattress

This mattress comes with a 120-night trial and a 10 Year Limited warranty. The thickness of the mattress is 12″, and the firmness is medium. The dimensions of Ace size are 108” wide x 80” long, but there are also Ace Player size (80” wide x 108” long) and Ace Family Size (144” wide x 80” long).

The mattress has 5 layers: the cover is made of ice-cooling fabric; the comfort layer consists of 2.5″ of open-cell memory foam; the transition layer is 1.5″ of gel-infused memory foam; the support core is made of 2″ of bamboo enriched memory foam and finally the foundation is 6″ of high-density polyfoam.

Pros

  • antibacterial and anti mites cover
  • 120 nights trial
  • many size options
  • perfect firmness and thickness

Cons

The only drawback is that, unlike other foam models, this mattress needs a base that can be ordered on the Ace Collection website. The base can be standard, low profile, or platform. Ace Sleep also produces headboards, bedding, and accessories for their models.

Natural Form Mattress

Natural Form Mattresses are therapeutic, eco-friendly, and supportive. They use wool as natural cooling material that provides just enough flexibility to allow you to sleep comfortably, but it makes your bed rigid so you don’t sink too deep into the mattress. The top of this cushioning comfort, we have added a pressure relief system for optimal comfort and support. 

Natural Form Alaskan King Beds are crafted from the finest ingredients. Each mattress is handcrafted to be soft or firm or anything in-between. This eco-friendly design includes no chemically injected cooling gel, only natural wool as a temperature-regulating alternative. The Natural Form provides restorative sleep with all the convenience of remote control comfort and therapeutic support.

Who is the target audience of Natural Form Mattress

This oversized mattress is perfect for people with regular back pain. The technology used in the mattress conforms to your body contours so that pressure relief is always optimal regardless of your body shape, sleeping position, and weight.

What users like about Natural Form Mattress

The mattress relieves back pain with great spinal relief. That is because of the Pressure Free technology and added support layer. Also, you can control the firmness level which makes your sleep more comfortable and individual.

All mattress models by Natural Form have a Merino Wool Cover which helps you to keep the temperature of your body. It’s hypoallergic and non-toxic too. The mattress is free of microfiber, phthalates, fire-retardants, formaldehyde, CFC’s and other chemicals.

The Natural Form provides a 100-days trial and their mattresses suits all types of bed: standard, platform, divan, ottoman, wood, metal, and others.

Quantitive measurements of Natural Form Mattress

Natural Form has 3 oversized mattresses available in the different price categories. All mattresses are trusted by 1200 medical institutions and many chiropractors.

The first model is the Garden mattress, the thickness is 10″. Patented Pressure-Free technology includes 8 air zones. The second mattress is Refresh with 11″ thick. The base layer of it consists of 30 to 84 helix air pods. And the third model is called Euro mattress and has 13″ thick. It’s the most expensive mattress by Natural Form and features up to 42 air zones.

Natural Form provides a 100-night trial and a 10-year limited warranty for all their mattresses. There are 4 oversized options available: California King (72″ W x 84″ L), Split King (76″ W x 80″ L ), Split Cal King (72″ W x 84″ L ), and Alsakan King (108″ x 108″).

Pros

  • eco-friendly
  • therapeutic support for back pain
  • 3 mattresses in the different price category

Cons

The downside of the Natural Form mattress is quite expensive delivery. Otherwise, there are free returns for the first 100 nights of use.

Alaskan King Bed Mattress by Mattress Insider

This mattress is the perfect combination of breathability and comfort. You can be sure you are using high-quality materials, with the ability to withstand 50% more bodyweight than other mattresses. Also, you can regulate firmness level by removing or flipping the layers of the Alaskan King mattress. It’s all thanks to a zippered in-place system.

In addition, this oversized king mattress includes a special anti-bacterial and waterproof membrane. It protects your bed from mold and bacteria effectively.

This mattress is hybrid which means there is a combination of the durable of the innerspring mattress and the pressure relief of the foam mattress. It gives you great pressure relief, without being too hard or too soft for your liking. It’s also certified by CertiRUP.

Who is the target audience of Alaskan King Bed Mattress

The thickness of this mattress is 13,5″ which is best for people who are heavier than 230 pounds. It’s also great for those who share a bed with some people, for example for parents with their child.

This bed is a great option for those who are trying to choose between memory foam and an innerspring base. The Mattress Insider gives you both options, so you don’t have to choose the one you like more.

What users like about Alaskan King Bed Mattress

The Alaskan King Bed Mattress is made with a zippered in-place system so it is simpler to reposition your bed. The mattress has comforting cooling gel memory foam and temperature-neutral Talalay latex that is then encased in organic cotton for breathability. You can rest easy knowing that this mattress was made by hand here in the US from the highest quality materials.

The support layer also has a firm side and a very firm side. So you can easily regulate the firmness by rotating the mattress. It’s very useful for a big family because every member can choose and tune the right firmness level for him. It’s a great option for a guest or day beds.

Quantitive measurements of Alaskan King Bed Mattress

The Alaskan King dimensions are 108″ x 108″. The thickness is 13,5″ which is between standard and thick types of mattresses. The mattress can support a person weighing up to 300 lbs. The Mattress Insider starts production of your order within 1-2 days and delivery can take to 10-12 weeks, while standard size mattresses ship within 10-14 business days.

The mattress consists of 2 parts: the comfort layer on the top (1” Soft Organic Cotton Quilt, 2” Gel Memory Foam, 2” Talalay Latex, and Smooth Top Organic Cotton Bottom) and the support layer or base (1,25″ Airflow foam, 6” Foam encased, individually pocketed coils, and 0,75” Support foam).

Pros

  • supports up to 50% more weight
  • zippered in-place system
  • 2 firmness options in 1 mattress

Cons

If you weigh less than 130 pounds, this mattress can be too firm for you. So it’s not a good choice if you are looking for a mattress for your child or just a small person.

Also, some people complain of short delivery time – they say that their orders took longer than expected and arrived after weeks instead of days. Mattress Insider wants about this because an oversized mattress is not typical order so that delivery can take to 10-12 weeks.

FAQ

What is the largest oversized mattress?

Many people think that Alaskan King (108″ x 108″) is the biggest mattress. But there is also Family XL, which is 144” wide and only 84” long. Some companies can make a mattress to order so you can get even more sizes.

How should I clean my mattress?

The best way to clean the mattress is by vacuuming. It protects you from dust mites, dirt, dead skin particles and it should be done once a month. But the cleaning also depends on the mattress manufacturer. For example, Casper Sleep recommends removing stains with a mild detergent and air-drying.

How often should I replace my mattress?

It depends on the durability of the materials. But, on average, it should be replaced every 8-10 years or earlier if there are visible signs of wear and tear.

The lifespan of the oversized mattress also depends on how many people sleep on it (if you have four children sleeping together, they will use up your mattress faster).

What are the different types of foam mattresses?

There are 4 most common types of foam: memory, gel, polyurethane, and latex. Memory foam is the most popular type. It is made by adding chemicals to regular foam, thus making it softer and giving it its memory effect (it returns back to its original shape). Polyfoam is the most durable material in the market today. Latex is good for allergic people and people with special medical conditions. And gel foam is suits people who are sensitive to temperature changes.

Do I need a mattress topper?

If you feel needed support and pressure relief, you don’t need it. But if your mattress is too firm to thin, a mattress topper will be a good solution to this problem. You should choose a 1-2 inch topper in this case.

Mattress pads are also a good choice because they can transform an ordinary bed into a heavenly sleeping surface. They provide extra support and comfort which is essential if you have back problems.

How many people fit in an oversized mattress?

It depends on its dimensions. If it’s Alaskan King (108″ x 108″), 4 people can be easily accommodated there. Family and Family XL can accommodate 5-7 people. And smaller sizes like Texas King, Alberta, and Wyoming can fit 2 people with a baby.

But the more the mattress is, the more comfortable each person is on it, especially if he likes to change sleeping positions at night.

What should be the room to fit an oversized mattress

Your room must have at least 12″ x 12″ dimensions. More specific measurements can be found in the table in the top paragraph of the article.

Where can I buy sheets for an oversized king bed?

Some companies include sheets and other bedding to their mattresses, but not all. In case there’s no such option, you should check Amazon or Walmart for oversized sheets.

Oversized 100% cotton sateen sheets (also called percale) will do for all types of king-sized mattresses. The sheet should be a little bit larger than the bed.

How do I know if my oversized mattress fits me?

You can try and lay on it before you purchase it, but this is not always possible. The best way to check whether it’ll fit your bedroom dimensions is by measuring the room’s length and width in inches then comparing them with recommending measurements from the table at the top of the article.

Why should you trust us?

The article was approved by orthopaedists and certified sleep consultants. All products on our top passed quality tests and were checked for certifications. We got sure that the materials used in these mattresses are non-toxic and safe.

Conclusion

An oversized mattress is a good solution for everyone who wants extra space during sleep. You can buy it yourself in many stores: offline and online. We recommend you make sure that the mattress is made of high-quality materials before buying.

There were the best 4 oversized mattresses. Hope you finally find the one that suits you perfectly!

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