What Is Size Of A Full Mattress?

What Is the Size of a Full Mattress?

A full mattress, often referred to as a “double bed,” measures 54 inches in width and 75 inches in length. This size is larger than a twin but smaller than a queen, making it a versatile option for a variety of sleeping arrangements and room sizes.

Exploring the Full Mattress Dimensions

The measurements of a full mattress are standardized, but it’s always important to check the exact specifications when purchasing, as some brands might have slight variations. Generally, a full mattress offers 54 inches of width, which is 16 inches wider than a twin bed (38 inches wide). However, like a twin bed, it remains 75 inches long, which can be a limiting factor for taller individuals.

Width: Comfort for Single Sleepers

For single sleepers, a full mattress provides ample room to spread out and sleep comfortably. With 54 inches in width, an adult can rest without feeling cramped. This extra width is particularly beneficial for those who tend to move around a lot during their sleep.

Length: Considerations for Taller Individuals

While the 75-inch length is suitable for most people, it is essential to consider the height of the sleeper. For anyone over 6 feet tall, a full mattress might feel short, leading to discomfort over time. Therefore, taller individuals might find better comfort in a longer mattress size, such as a queen or king mattress, which typically measure 80 inches in length.

Suitability and Usage of Full Mattresses

Full mattresses are highly versatile and serve a range of purposes due to their balanced dimensions. Here, we discuss various scenarios where a full mattress might be the perfect choice.

Teenagers and Young Adults

A full mattress is ideal for teenagers and young adults. As they transition from childhood, they outgrow twin-size beds but might not need or have the space for a larger bed. The full size provides enough room for growth and ensures comfort during these important years.

Guest Rooms

A full mattress is an excellent option for guest rooms. It offers more sleeping space than a twin without taking up the room of a queen or king. Guests of diverse sleeping preferences, whether singles or couples, can find a full bed comfortably accommodating for short visits.

Small Apartments and Studios

Urban living often necessitates efficient use of space. In small apartments or studio dwellings, a full mattress strikes a balance between size and comfort, allowing for a more flexible room layout. It can fit in tighter spaces while still providing enough sleeping area for an adult.

Shared Beds for Children

In families where children share a bedroom, a full mattress can be a snug but workable solution for two small children. It provides more room than a twin or twin XL but does not consume as much space as larger bed sizes, enabling more room for play and activities in the bedroom.

Value and Budget

Full mattresses typically offer great value for money. They are less expensive than queen and king sizes, making them a budget-friendly option for those looking for a larger bed without the higher price tag. Accessories like bed frames, sheets, and mattress toppers for full beds also tend to cost less than their larger counterparts.

Types of Full Mattresses

Full mattresses come in various types, catering to different sleeping preferences and needs. When choosing a full mattress, it is vital to consider the type that best suits your comfort and health requirements.

Innerspring Mattresses

Innerspring mattresses are one of the most common types and have been around for well over a century. They feature a core system of metal coils that provide support. Innerspring mattresses offer a bouncy feel and typically have a firmer surface. They are suitable for those who prefer a more traditional mattress feel and need firm support.

Memory Foam Mattresses

Memory foam mattresses have grown in popularity due to their conforming nature. Composed of many layers of foam, these mattresses adapt to the shape of the sleeper’s body, providing pressure relief and support. They are excellent for individuals who experience joint pain or prefer a softer sleeping surface. However, they can retain heat, so look for options with cooling features if you sleep hot.

Latex Mattresses

Latex mattresses are made from natural or synthetic latex. They offer a responsive and buoyant feel, similar to innerspring mattresses but without the noise of metal coils. Latex mattresses are durable and provide consistent support. They are good for those who prefer a balanced combination of comfort and support.

Hybrid Mattresses

Hybrid mattresses combine the best of innerspring and foam mattresses. They have a core of coils for support, topped with layers of foam or latex for comfort and pressure relief. Hybrids offer a balanced feel with support and contouring, making them a good choice for a wide range of sleepers.

Top 5 Mattresses Recommended By GoodSleepHub.com

Air Mattresses

Air mattresses use air chambers for support and can be adjusted to different firmness levels. Some air mattresses, designed for everyday use, come with advanced features and high-quality materials. These mattresses are particularly useful for those who need customizable support levels due to varying back and joint conditions.

Mattress Firmness and Sleep Position

Firmness and sleep position are critical factors in selecting a full mattress. Different firmness levels cater to distinct sleeping styles, and understanding your preferred sleeping position can help you choose the right mattress.

Side Sleepers

Side sleepers typically benefit from a medium-soft to medium-firm mattress. This balance allows the mattress to contour to the body’s curves, relieving pressure points at the shoulders and hips while providing enough support to keep the spine aligned.

Back Sleepers

Back sleepers usually need a firm to medium-firm mattress that provides substantial support for the spine and prevents the body from sinking too deeply. A mattress that supports the natural curve of the spine is ideal for these sleepers.

Stomach Sleepers

Stomach sleepers require a firmer mattress to keep the body afloat and prevent the spine from arching unnaturally. A hard surface helps maintain alignment and reduces the risk of back pain.

Combination Sleepers

If you change positions throughout the night, a medium-firm mattress often provides the most versatile option. It should offer enough support and comfort to accommodate various sleeping styles without causing discomfort.

Accessories for Full Mattresses

To get the most out of a full mattress, consider various accessories that can enhance comfort, support, and longevity.

Mattress Protectors

Mattress protectors are essential for keeping your mattress clean and free from allergens. They shield against spills, stains, and dust mites, and many are waterproof. A good protector can extend the life of your mattress significantly.

Mattress Toppers

Mattress toppers add an extra layer of comfort and can alter the feel of your mattress. They come in various materials, including memory foam, latex, and down, allowing you to fine-tune the firmness and support according to your preference.

Bed Frames

A sturdy bed frame provides essential support for your full mattress and can add storage space and aesthetic appeal to your bedroom. Options include platform beds, which require no box spring, and traditional bed frames, which might need a box spring for additional support.


Pillows are crucial for ensuring proper neck and head support. The right pillow complements your mattress by helping maintain spinal alignment. Choose pillows based on your sleeping position: side, back, or stomach.

Caring for Your Full Mattress

Proper care can extend the life and comfort of your full mattress. Here are some maintenance tips to keep your mattress in top condition.

Regular Rotation

Rotating your mattress every 3 to 6 months helps prevent uneven wear and extends its lifespan. While flipping is not necessary for most modern mattresses, rotating from head to foot is recommended.


Keep your mattress clean by vacuuming it regularly to remove dust and debris. Address spills immediately with a damp cloth and mild detergent. Avoid soaking the mattress and let it air dry completely before covering it again.

Using a Mattress Protector

As mentioned earlier, a mattress protector is essential in safeguarding against moisture, allergens, and pests. Make sure to wash the protector regularly as per the manufacturer’s instructions.

Proper Support

Ensure your mattress is adequately supported by a solid bed frame and, if necessary, a box spring. This prevents sagging and maintains the mattress’s structural integrity over time.

Finishing Thoughts

When considering a mattress size, a full mattress is a versatile and practical option for many scenarios. Its dimensions of 54 inches wide and 75 inches long strike a balance between space efficiency and comfort. Whether for teenagers, guest rooms, or small apartments, a full mattress offers a cozy and affordable solution. Selecting the right type, firmness level, and appropriate accessories can further enhance your sleeping experience, ensuring a restful and rejuvenating night’s sleep. Remember, investing in a good mattress is investing in your well-being.


  • Ollie Lane

    My name is Ollie Lane, the zestful spirit and sleep enthusiast editor at GoodSleepHub. Blending my expertise in Sleep Technology with a dash of whimsy, I'm all about transforming your nights from blah to ta-da! I believe great sleep is a blend of science, art, and a bit of fairy dust. When I'm not knee-deep in the latest sleep gadgetry or jotting down notes for my next blog post, you can find me strumming on my ukulele or chasing after my mischievous beagle, Benny. My approach to sleep is like my music: playful, innovative, and always in tune with your needs.

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