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Best Oversized Mattress: Larger-Than-Life Picks
Our Top Picks
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Best Overall Mattress
Nolah Luxe Alaskan King -
Most Comfortable Mattress
Ace Collection Mattresses -
Best Value Mattress
Big Mattress Co. Oversized Mattresses -
Best Adjustable Mattress
Mattress Insider Alaskan King Mattress
Best Overall Mattress

The ultra-spacious Nolah Luxe Alaskan King spans 9 feet by 9 feet, creating an expansive sleep surface that offers gentle cushioning and sturdy coil support. Open-cell foams and steady air circulation through the support core also help ensure a cool, comfortable night’s rest.
Pros & Cons
Pros
- Deep foam layers cushion the body without sagging or hugging too closely
- Robust coils push back against your weight for a supportive, responsive feel
- Excellent breathability and temperature control
Cons
- Only available in one size and firmness
- Assembly can be difficult and time-consuming
Ratings
Our Take
Most Comfortable Mattress

Ace Collection mattresses are available in three proprietary sizes, each of which offers a larger-than-average surface to meet your needs. You can choose from multiple hybrid designs and firmness levels to further customize your sleep space.
Pros & Cons
Pros
- Three oversized models, each with two firmness options
- Pressure-relieving polyfoam comfort system
- Breathable bamboo cover and gel-infused comfort layer engineered for cooling
Cons
- No firm or extra firm options
- Stomach sleepers over 230 pounds may not get enough midsection support
- Proprietary mattress sizes may require special bedding and bases
Ratings
Our Take
Best Value Mattress

Big Mattress Co. offers a wide selection of oversized models, many of which carry approachable price-points if you’re shopping on a budget. You can choose an all-foam model that cushions the body closely, or an airbed with adjustable firmness levels, and six different sizes are available.
Pros & Cons
Pros
- Available in six larger-than-standard sizes
- Comes in all-foam and airbed designs
- Includes a 100-night sleep trial
Cons
- Foam models come in limited firmness options: Medium (5) and medium firm (6)
- Larger sizes may be difficult to set up
Ratings
Our Take
Best Adjustable Mattress

The flippable Mattress Insider Alaska King is cushioned with plush memory foam on one side and responsive Talalay latex on the other. Foam-encased coils form a sturdy support system, while an organic cotton cover promotes breathability and cooling on the surface.
Pros & Cons
Pros
- Reconfigurable layers for adjustable firmness
- Durable hybrid design
- Engineered for cooling with breathable organic cotton, gel memory foam, and Talalay latex
Cons
- Comes in just one size
- Relatively high price-point
- Assembling and disassembling the mattress can be tricky
Ratings
Our Take
Compare Our Top Picks
Mattress | Mattress Type | Ideal For | Value | Sleep Trial |
Nolah Luxe Alaskan King | Hybrid | Hot Sleepers | Good Value | 120 nights (30-night requirement) |
Ace Collection Mattresses | Hybrid | Combination Sleepers | Good Value | 21 nights (35% handling fee) |
Big Mattress Co. Oversized Mattresses | Foam/Airbed | Budget Shoppers | Great Value | 100 nights |
Mattress Insider Alaskan King Mattress | Hybrid | Hot Sleepers | Fair Value | None |
Oversized mattresses are a unique option, and their fans swear by them. Even with a smaller size like a Wyoming king, the sheer amount of space feels like a big leap if you’re used to a queen bed. If you’re frequently sharing the bed with kids or pets, or you just really like to sprawl out, the extra space can be freeing and you may find it hard to go back.
What Oversized Mattress Sizes Are Available?
The most common oversized mattress sizes include Wyoming king, Texas king, Vermont king (also known as Alberta king), Alaska king, and family. That said, you can find some rarer sizes, such as family XL and extra wide king. A few manufacturers also offer custom mattresses, which may be ideal if you’re looking for very specific dimensions that don’t align with widely available sizes.
Oversized mattresses are bigger in length, width, or both than standard king mattresses. Longer mattresses are well suited to tall sleepers or those who have a pet that sleeps at the foot of the bed. Wider mattresses accommodate extra sleepers, such as children or pets, or allow occupants to spread out more. For sleepers with large bedrooms, an oversized mattress may also look better by filling out the space.
Oversized Mattress Sizes
Size | Dimensions |
Wyoming King | 84″ x 84″ |
Texas King | 80″ x 98″ |
Vermont King | 96″ x 96″ |
Alaskan King | 108″ x 108″ |
Family | 120″ x 80″ |
Best Types of Oversized Mattresses
You can find oversized models for any of the standard mattress types, but some are more common than others. We’ll break down how the materials and construction can impact the performance of an oversized mattress.
- Foam: Foam mattresses typically offer significant pressure relief and motion isolation, making them comfortable for sharing. However, their limited edge support may make them harder to get into or out of, and some retain heat.
- Hybrid: Hybrid models contain a foam or latex comfort system with a coil core, balancing conforming, responsiveness, edge support, and breathability. That said, they often carry higher price tags.
- Innerspring: Oversized innerspring mattresses consist primarily of coils, making them springy and easy to move on. That bounce, however, can also contribute to the spread of vibrations across the mattress surface.
- Latex: Latex models frequently consist of natural latex, which is responsive, conforming, and widely considered eco-friendly. This combination may appeal to families looking to share an oversized bed. However, oversized latex mattresses tend to be expensive and quite heavy.
Video: Comparing the Major Mattress Types
Watch our video to learn more about the construction and performance differences between the common types of mattresses.
What You Should Consider in an Oversized Mattress
Whenever you choose a mattress, it is important to consider relevant criteria. However, certain factors carry additional implications when you’re shopping for an oversized mattress.
Support
Adequate mattress support promotes proper spinal alignment. Support is closely linked to mattress firmness, but the best firmness for balanced contouring and support depends on the sleeper’s body type and position preference. Most sleepers get the right amount of support from something between a soft or firm mattress, making this the most popular range for oversized mattresses.
For sleepers who like to lie along the perimeter of the mattress, edge support can also play a role in the usable surface area and the ease of getting into or out of bed.
Durability
The average mattress lasts between 7 and 10 years, though this depends partially on how you care for it, how often you use it, and how often you rotate it.
Under the right conditions, oversized mattresses can last for a similar length of time to their standard counterparts. However, uneven weight disruption may cause some portions of the mattress to show signs of wear before others. To account for this, some oversized mattress manufacturers have replaceable components so that you can change out part of the surface without buying an entirely new mattress.
Thickness
Mattress thickness can impact support, ease of access, and aesthetics. Many sleepers, particularly those over 230 pounds, get a better blend of contouring and support from higher-profile models since they provide more materials to redistribute weight and cradle the body. At the same time, a higher- or lower-profile model may be easier to get into and out of depending on your height and the height of your bed frame. The mattress’ profile also impacts how an oversized mattress looks in the room.
Accessories
Because oversized mattresses are less common, shopping for the right frame, foundation, and bedding can be tricky. Many retailers and manufacturers that sell oversized mattresses also offer accessories designed to accommodate them. Additionally, a few furniture retailers sell oversized bed frames, and some bedding companies produce oversized options.
Pricing
Oversized mattresses range from around $1,500 to $10,000 depending on the size and materials. Since oversized mattresses call for special bedding and bed frames, you’ll also need to factor these into your budget.
Sleep Trial and Warranty
Trial periods and warranties can improve your buying experience and protect your purchase. Mattress trial periods are a window during which you can return your mattress if it’s not right for you. Because of their limited demand and more challenging logistics, oversized mattresses frequently aren’t eligible for sleep trials. However, a few manufacturers offer trial policies.
Mattress warranties protect your purchase if a qualifying defect, such as splitting foam or a deep impression, arises prematurely. A warranty can provide peace of mind and offer recourse if the mattress doesn’t hold up well.
Shipping, Delivery, and Setup
Because of their size, oversized mattresses tend to be more complicated to set up than standard options. They frequently ship compressed, rolled, and packed in boxes. Some manufacturers divide their oversized mattresses between several boxes, meaning you’ll need to move the components inside and assemble the mattress at home. Other companies ship their mattress in one piece, which may make the box heavier and more cumbersome to move.
If you’d rather not handle an oversized mattress yourself, some companies offer White Glove delivery for an additional charge. This service usually includes a team bringing the oversized mattress into your room of choice, setting it up, removing any packaging material, and often disposing of your old mattress.
Before purchasing an oversized bed, also take into account your bedroom space. Measure carefully, ensuring there will be enough open floor space to move around.
Is an Oversized Mattress Right for You?
An oversized mattress is right for some sleepers, but it isn’t ideal for everyone. If you need more room to spread out than a king or California king mattress can provide, then an oversized model might be a good option. Whether you or your partner move around a lot, you have kids who regularly crawl into bed, or your pets join you during the night, an oversized mattress can give you and your co-sleepers more room.
That said, if you’re on a tight budget, have limited space, or want to use your existing accessories, a standard mattress size may be a better choice. Additionally, if you would struggle to move, assemble, or maintain a large, heavy sleep surface, you might be better off with another size.
Pros
- Extra space
- Sense of luxury
- Suitable for taller sleepers
- Accommodates co-sleeping with children or pets
Cons
- More expensive
- Heavy, cumbersome, and difficult to move
- Requires a larger space
- Limited availability of sheets and accessories
Discover More Mattress Solutions
To learn more about your mattress options, check out some of our other buying guides.
More Mattress Size Options
How We Test
Combined, our diverse team of sleep product reviewers have decades of experience in the industry. Since our testers vary in position preferences, body types, and sleep habits, we collect robust data on how a mattress may perform for different individuals. At the same time, we operate based on a standard methodology to make our reviews as objective as possible.
Over the years, we’ve tested over a thousand mattress models, including countless oversized options. Based on the results of our lab testing, we picked our top recommendations for the best oversized mattress.
Frequently Asked Questions
An oversized mattress is larger than the normal dimensions of standard mattress sizes. Common oversized options include Wyoming king, Texas king, Vermont king, extra wide king, family, and family XL.
You can buy an oversized mattress from select mattress stores and manufacturers. Some mattress companies also sell custom sizes, so you may be able to purchase an oversized mattress by asking them to produce a sleep surface according to your specifications.
Sleepers who need more room than a standard mattress can provide might prefer an oversized sleep surface. This may include tall sleepers, people who like to sprawl out while sleeping with a partner, sleepers who share their bed with pets or kids, and anyone who likes the luxurious look or feel of a large sleep surface.
Alaskan king and family XL mattress sizes are among the largest. An Alaskan king typically measures 108 inches by 108 inches, whereas a family XL is around 144 inches by 84 inches. That said, some manufacturers also offer custom sizes, so they might be able to produce larger dimensions.
Oversized mattress prices start at around $1,500 and can reach over $10,000. Expect larger oversized mattresses and those with higher quality materials to carry higher price tags.