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Last Updated July 23, 2026
A full-size bed (also called a double bed) measures 54 inches wide and 75 inches long. It offers 16 inches more width than a twin and twin XL, giving solo sleepers extra room to stretch out while remaining more space-efficient than a queen bed. Full beds work well in guest rooms, studio apartments, teenagers' bedrooms, and smaller master bedrooms.
[Shop Full Size Mattresses] [Mattress Sizes Chart & Guide]
Key Takeaways:
| FULL SIZE BED | DIMENSIONS |
|---|---|
| Dimensions in inches | 54 x 75 inches |
| Dimensions in feet | 4.5 x 6.25 feet |
| Dimensions in cm | 137.16 x 190.5 cm |
Not sure if a full is the right fit? Compare it with other standard mattress sizes.
| MATTRESS SIZE | DIMENSIONS (W x L) | MINIMUM ROOM SIZE | BEST FOR |
|---|---|---|---|
| Full Mattress | 54 x 75 inches | 9.6 x 10.6 feet | Single adults who want more room to spread out |
| Twin Mattress | 38 x 75 inches | 7 x 10 feet | Kids, teens, college students, guest rooms, single adults under 6 ft |
| Twin XL Mattress | 38 x 80 inches | 7 x 10 feet | Taller teens, college students, single adults over 6 ft |
| Queen Mattress | 60 x 80 inches | 10 x 10 feet | Couples, single adults who prefer extra sleeping space |
For a full size bed, a bedroom measuring at least 9.6 feet by 10.6 feet is recommended. This leaves enough room to move comfortably around the bed while fitting essentials like a nightstand/dresser. If you have a larger room (around 10 by 12 feet or more), you'll have greater flexibility for a more open layout.
In terms of budget, a basic full size mattress costs around $500 to $1,100. Premium latex and hybrid models can cost around $1,100 to $1,700 or more. Besides the mattress itself, plan for the cost of a compatible bed frame and other bedding essentials, like mattress protectors.
Before you buy a full mattress, think about how it'll fit your room and whether it'll meet your needs for years to come.
A full mattress is a great choice if you sleep alone and want more room than a twin provides. It gives you extra space to change positions without taking up a lot of floor space like a queen size mattress. If two adults share the bed every night, though, it can start to feel crowded. Since each person gets only about 27 inches of sleeping space, a queen mattress is the better option for couples seeking long-term comfort.
A full bed fits comfortably in bedrooms measuring at least 9.6 x 10.6 feet, but the room should still feel easy to move around in after the bed is in place. Before buying, think about your daily routine. Can you make the bed without squeezing between furniture? Will dresser drawers and closet doors open fully? A little planning now can make the room much more comfortable to use.
A bed frame should provide even support across the mattress to help maintain its shape and extend its lifespan. Make sure it's designed for a standard full-size mattress, with dimensions of 56-59 inches wide and 77-80 inches long, so the mattress fits securely without shifting. If you're buying an adjustable base, check the manufacturer's recommendations to ensure it's compatible with your mattress.
The best mattress firmness level depends on two things: body weight and sleep position. Side sleepers and lightweight sleepers need more cushioning around the shoulders and hips, while back and stomach sleepers and heavyweight sleepers benefit from a firmer surface that keeps the spine aligned. Most adults find 10 to 12 inches of thickness to be comfortable because it provides a good balance of support and pressure relief.
Suggested Read: Mattress Thickness Guide
These bedding accessories can make your full-size bed more comfortable while protecting it from everyday wear. Start with the essentials, then add other items as your budget allows.
A bed frame provides the support needed to reduce sagging and also keeps the mattress off the floor. Modern mattresses like latex, memory foam, and hybrids can work well on platform beds as well as adjustable beds. Traditional innersprings work well on box springs.
A mattress topper can improve the comfort and support of your mattress. If it doesn't feel as comfortable/supportive as it once did, just add a 2-3 inch topper, and you'll refresh the bed without needing to buy a new one.
A mattress pad is useful if you want a little extra cushioning but don't want to change how the mattress feels. It's also easier to wash than the mattress itself, helping keep your bed fresh between deep cleans.
A mattress protector helps prevent spills, stains, allergens, and other impurities. If the bed is used by teenagers or in a guest room, a waterproof protector can save you from having to deep clean the entire mattress every time an accidental spill occurs.
Sheets can make a noticeable difference in comfort, as they sit directly against your skin all night. Cotton sheets are usually the softest and most breathable. If you have a thicker mattress, choose deep-pocket fitted sheets so the corners stay secure.
A comforter gives you year-round warmth with enough coverage to drape nicely over the sides of the bed. From lightweight options for warmer months to heavier designs for winter, there's a full comforter for every season.
A duvet cover keeps your comforter protected while making it easy to switch up the look of your bedroom. With it, maintaining your comforter during cleaning season becomes simple.
If you're ready to upgrade your sleep setup, explore Turmerry's collection of GOLS-certified organic full latex mattresses. Available in multiple firmness options, they're designed to provide durable support and long-lasting comfort.
Disclaimer: What is said in this article has been referenced from multiple sources and is intended only for educational and informational purposes. Please note that no content in this article is a substitute for professional advice from a qualified doctor or healthcare provider. Always consult an experienced doctor with any concerns you may have regarding a health condition or treatment, and never disregard any medical suggestions or delay in seeking treatment because of something you read here.
