Best Firm Full-Size Mattresses for 2019


Our review process

We've already done all the heavy lifting researching firm full-size mattresses. That way, you don't have to pour over confusing reviews about selecting the perfect one for you. By reading this article, you'll have an excellent understanding of what kinds of mattresses are available on the market, so you can confidently purchase a mattress that will ensure comfortable sleep for years to come.

We've reviewed firm full-size mattresses and want to share some information with you. Increasing circulation, these mattresses promote deeper sleep. They are designed with a 34-36 pound indentation load deflection rating and are suitable for back sleepers. However, they can put strain on specific pressure points, including the hips and shoulders. Moreover, they can be uncomfortable if you're not accustomed to sleeping on firm surfaces, so it might take a few days to get used to them.

These mattresses measure 54" X 75" and are suitable for studio apartments or other small living spaces. They are spacious enough for an individual without taking up as much room as a larger mattress. However, they are short in length, so they might not be a good option if you're 6'3" or taller. In addition, they have a narrow width, which makes them less than ideal for people who prefer having extra space while sleeping.

Best Overall Score
An image of Sarah Peyton 1001194 Firm Memory Foam Full-Size 10-Inch Mattress

The Sarah Peyton Firm Memory Foam Full-Size Mattress is a great choice for an eco-friendly option, free from harmful chemicals, as well as low in VOCs. Designed with a memory foam construction, this hypoallergenic mattress lets you toss and turn and then re-contours to your body after you've found a comfortable position. It features antimicrobial materials, making it perfect for people who are sensitive to dust mites, pollen, or mold. It helps eliminate tossing and turning at night, which drastically increases the quality of your sleep.

Available in a full-size, this Sarah Peyton mattress is ideal for comfortably accommodating one sleeper. With a 10-inch thickness, it provides a lot of support and can sustain more weight than thinner mattresses. It features a firm comfort level, which is a suitable choice for people who suffer from back pain since it properly aligns the spine. With eco-friendly fabric, this hypoallergenic mattress is built without dangerous chemicals, such as mercury, lead, and other heavy metals. It is dust mite resistant, making it a safe and healthy option, especially for those who suffer from allergies.

    Pros
    • Firm mattress provides the support necessary to keep your body straight
    • Antimicrobial benefits assist people sensitive to allergies
    • Helps eliminate tossing and turning at night, drastically improving your quality of sleep
    Cons
    • Full-size does not comfortably accommodate couples
    • Firm mattress can put painful pressure on pressure points
    • 10-inch thickness doesn't provide the most support
Runner Up
An image of Modway Kate Firm Innerspring Full-Size Innerspring System Individually Wrapped Pocket Coils 8-Inch Mattress

For a better night's sleep and ultimate comfort, choose a Modway Kate Firm Innerspring Full-Size Mattress. With an innerspring construction, this Modway mattress will be able to support a variety of sleepers, including stomach sleepers. Available in a full-size, it is ideal for accommodating one sleeper. It features a polyester cover, which is highly durable and can last extensive washing and wear. It features an 8-inch thickness, so your mattress will not dip in the center or fall on the sides. With a firm comfort level, it is ideal for those who rest on their stomach or back because it properly aligns the spine and evenly distributes your body weight. It has individually-wrapped pocket coils so that it encourages airflow for a cooler sleeping surface. This Modway mattress has a quilted cover, providing added comfort and cushioning.

    Pros
    • Firm mattress will provide the support required to keep your body straight
    • Comes with a polyester cover, resisting wrinkles and fading over time
    • Built with individually-wrapped pocket coils to keep the mattress fresh and cool during the night
    Cons
    • Full-size does not comfortably accommodate couples
    • Firm mattress can put painful pressure on pressure points
    • 8-inch thickness doesn't provide the best support
For Side Sleepers
An image of Sleep Sync OVS1175DB Firm Memory Foam Full-Size 12-Inch Mattress

The Sleep Sync Firm Memory Foam Full-Size Mattress is a good choice for an environmentally-friendly option, without destructive chemicals, as well as low in VOCs. This Sleep Sync mattress eliminates motion transfer so that you won't be awakened by movement. It is designed with antimicrobial materials so that it will stay clean and hygienic. Featuring a memory foam construction, it lets you move around in your sleep and then re-contours to your body after you've settled.

This Sleep Sync mattress has open cell memory foam and GEL LUX synthetic latex foam layers. Available in a full-size, it is perfect for comfortably accommodating one sleeper. It has a 12-inch thickness, maintaining its quality and shape even after prolonged use. It includes three layers and features a firm comfort level, providing support to the lumbar region in any sleeping position. With eco-friendly fabric, it is made without harmful chemicals, such as phthalates, formaldehyde, and other heavy metals. This Sleep Sync mattress is dust mite resistant, lowering your risk of getting allergies.

    Pros
    • Firm mattress helps your body maintain good posture to keep your back from curving
    • Features antimicrobial fibers, making it perfect for people who are allergic to pollen, dust mites, or mold
    • Eliminates motion transfer, making it great for light sleepers
    Cons
    • Full-size does not comfortably accommodate couples
    • Firm mattress can put painful pressure on pressure points
    • 12-inch thickness can tend to appear disproportional in some bed frames
Additional Picks
An image of Serta Blue Max Touch Firm Gel Memory Foam Full-Size 12.5-Inch Mattress

The Serta Blue Max Touch Firm Gel Memory Foam Full-Size Mattress is a great choice for anyone who gets uncomfortably warm at night. Available in a full-size, this Serta mattress is perfect for comfortably accommodating one sleeper. It features a 12.5-inch thickness, preventing any structural problems that thinner mattresses can have. With a firm comfort level, it is suitable for those who sleep on their back because it provides excellent spinal support. This thick mattress features heat regulation technology, promoting optimal sleep temperature. It provides pressure point relief, so your body is supported to diminish any discomfort. This Serta mattress includes five layers and has a ventilated design, so it will stay dry in order to prevent mildew and mold from growing. Designed with a gel memory foam construction, it will carry heat away from the body due to its better air circulation. It features a TempActiv touch cover for superior cooling and thermal regulation.

    Pros
    • Firm mattress is ideal for people who need precise spinal alignment
    • Heat regulation technology prevents you from getting overheated while you're sleeping
    • Provides pressure point relief, allowing certain areas that are exhausted throughout the day to receive the support they need during a night's sleep
    Cons
    • Full-size does not reasonably accommodate couples
    • Firm mattress can put painful pressure on pressure points
    • 12.5-inch thickness may appear too large in some bed frames
An image of Wolf Mattress Firm Innerspring Full-Size Coil Springs Super Soft 10-Inch Mattress

For optimal comfort and a restful night's sleep, consider the Wolf Mattress Firm Innerspring Full-Size Mattress. This thick mattress has a supportive design, aligning your spine horizontally when sleeping on your side. It has an innerspring construction, which adapts easily to your body shape. Available in a full-size, this thick mattress is perfect for accommodating one sleeper. It has a 10-inch thickness, so it won't sink, sag, or leave body impressions after long periods of time. With a firm comfort level, it provides complete support of your body for uninterrupted sleep. It features a stretch knit quilted cover, which keeps your mattress looking newer longer. Featuring fortified edge support, it provides greater edge support and higher durability so the mattress will last for a long period of time.

    Pros
    • Firm mattress encourages a deeper and more restful sleep
    • Supportive design ensures proper spinal support and alignment
    • Fortified edge support for added reinforcement around the border of the mattresses
    Cons
    • Full-size does not reasonably accommodate couples
    • Firm mattress can put painful pressure on pressure points
    • 10-inch thickness doesn't provide the best support
An image of Priage OS-BNSM-10F Firm Innerspring Full-Size Coil Springs 10-Inch Mattress

The Priage Firm Innerspring Full-Size Mattress is ideal for people who frequently have allergies. This hypoallergenic mattress ensures a restful night's sleep. Featuring a 10-inch thickness, this Priage mattress will maintain its shape even with extra weight. It features a firm comfort level, which will provide the support necessary for spinal alignment. Available in a full-size, it is perfect for accommodating one sleeper.

With an innerspring construction, this Priage mattress will adapt easily to your body shape. It has a quilted cover, providing added comfort and cushioning. It has HD foam and viscolatex foam layers. Designed with antimicrobial materials, this hypoallergenic mattress fights against any noxious bacteria. It has green tea extract and castor natural seed oil infused foam, maintaining a fresh sleeping environment with antimicrobial and anti-odor qualities.

    Pros
    • Firm mattress provides a comfort level suitable for anyone looking for the ideal mix of softness and support
    • Designed with antimicrobial benefits to supply a clean and healthy sleep environment
    • Comes rolled to make it easy to deliver to your home
    Cons
    • Full-size does not reasonably accommodate couples
    • Firm mattress can put painful pressure on pressure points
    • 10-inch thickness doesn't provide the most support
An image of Wolf Mattress OEN1PL-9930 Firm Pocketed Coil Full-Size Individually Wrapped Pocket Coils 11-Inch Mattress

For a combination of comfort and support, choose the Wolf Mattress Firm Pocketed Coil Full-Size Mattress and enjoy a restful night's sleep. With an 11-inch thickness, this thick mattress can sustain a lot of weight so it will stay in great condition for longer. Available in a full-size, it is perfect for comfortably accommodating one sleeper. With a firm comfort level, it is perfect for people who sleep on their back because it offers excellent spinal support.

Featuring a pocketed-coil construction, this thick mattress gives optimal comfort because it decreases pressure points. It is designed with individually-wrapped pocket coils to promote airflow for a cooler sleeping surface. This Wolf Mattress mattress has a supportive design, aligning your spine horizontally when sleeping on your side. With pressure point relief, it is perfect for those who sleep on their stomach.

    Pros
    • Firm mattress conforms to the curves of your spine in order to keep your body straight
    • Individually-wrapped pocket coils diminish disruption from you or your partner
    • Supportive design ensures proper spinal support and alignment
    Cons
    • Full-size does not reasonably accommodate couples
    • Firm mattress can put painful pressure on pressure points
    • 11-inch thickness can appear too large in some bed frames
An image of Select Luxury OS14Select-F Firm Memory Foam Full-Size 14-Inch Mattress

The Select Luxury Firm Memory Foam Full-Size Mattress is ideal for people who are more sensitive to allergies. Available in a full-size, this Select Luxury mattress is perfect for comfortably accommodating one sleeper. It features a 14-inch thickness, so after long periods of time it won't collapse around the edges. This hypoallergenic mattress ensures a restful night's sleep. Featuring a firm comfort level, it provides overall support of your body for uninterrupted sleep. It is dust mite resistant, ensuring that your bed defends against pests and mites.

This hypoallergenic mattress is designed with a zippered cover for a comfortable fit on your mattress. It has a memory foam construction, letting you move around in your sleep and then re-contours to your body after you've settled. It has open cell memory foam and gel foam layers. With three layers, it delivers extra support on pressure points and greater stability for your back. It is made to eliminate motion transfer, so any kind of movement won't disturb your sleep. Featuring antimicrobial materials, it provides you with a clean and hygienic sleep environment. It is designed with temperature-smart foam to provide added cooling.

    Pros
    • Firm mattress will provide support to the lumbar region for all sleeping positions
    • Designed with antimicrobial benefits to supply a clean and healthy sleep environment
    • Eliminates motion transfer, making it ideal for light sleepers
    Cons
    • Full-size does not comfortably accommodate couples
    • Firm mattress can put uncomfortable pressure on pressure points
    • 14-inch thickness can appear disproportional in some bed frames
An image of Wolf Mattress REAPL-9930 Firm Pocketed Coil Full-Size Individually Wrapped Pocket Coils 10-Inch Mattress

For a better night's rest and endless comfort, select a Wolf Mattress Firm Pocketed Coil Full-Size Mattress. Available in a full-size, this thick mattress is perfect for comfortably accommodating one sleeper. With a firm comfort level, it is perfect for your lower back because it protects from caving in. Featuring a 10-inch thickness, this thick mattress will maintain its shape even with added weight.

Featuring a pocketed-coil construction, this thick mattress provides optimal comfort because it minimizes pressure points. It features a stretch knit weave, keeping your mattress looking newer for longer. This thick mattress includes individually-wrapped pocket coils, so it minimizes pressure points and optimizes comfort. It offers pressure point relief to increase comfort and alleviate pain. This Wolf Mattress mattress has a supportive design, ensuring proper spinal support and alignment.

    Pros
    • Firm mattress conforms to the curves of your spine in order to keep your body straight
    • Built with individually-wrapped pocket coils to keep the mattress fresh and cool during the night
    • Supportive design ensures proper spinal support and alignment
    Cons
    • Full-size does not comfortably accommodate couples
    • Firm mattress can put uncomfortable pressure on pressure points
    • 10-inch thickness provides less support than thicker mattresses
An image of Tulo Firm Memory Foam Full-Size 10-Inch Mattress

The Tulo Firm Memory Foam Full-Size Mattress is a great option for anyone who gets overheated while they're sleeping. This Tulo mattress minimizes motion transfer, making it ideal for restless sleepers. It features cooling technology, which absorbs heat more effectively to prevent night sweats. Designed with a memory foam construction, it allows you to move around in your sleep and then re-contours to your body after you've found a comfortable position.

This Tulo mattress is built with a polyester, tencel cover, offering the advantage of moisture absorption and air permeability. Available in a full-size, it is perfect for comfortably accommodating one sleeper. It has three layers and features a firm comfort level, providing the support necessary for spinal alignment. With a 10-inch thickness, it can support a lot of weight so it won't sink in easily. This Tulo mattress features a knitted cover, keeping its shape for easy care. It has a ventilated design, optimizing the flow of air, so you always feel cool and comfortable while asleep.

    Pros
    • Firm mattress provides complete support of your body for uninterrupted sleep
    • Comes with a polyester, tencel cover, offering the advantage of moisture absorption and air permeability
    • Cooling technology efficiently distributes heat to ensure your bed remains cool
    Cons
    • Full-size does not reasonably accommodate couples
    • Firm mattress can put uncomfortable pressure on pressure points
    • 10-inch thickness provides less support than thicker mattresses
Deciding on Your Firm Full-Size Mattress: Some Factors to Think About:
Mattress Type: Which One Is Right for You?
Gel Memory Foam Mattresses

Looking for a good gel memory foam mattress? This firm full-size mattress could be a good choice. These mattresses feature a breathable design, so there is proper ventilation and airflow. Distributing your weight evenly across the mattress, they are less likely to sag or droop with extended use. Featuring pressure-point relief, they provide additional support to sensitive areas such as the hips and shoulders. Available in a variety of materials, gel memory foam mattresses offer just the right amount of comfort for you. They have superior motion isolation, making them great for restless sleepers, unlike traditional spring mattresses.

Hybrid Mattresses

Before you make your purchase, you'll want to decide if a hybrid mattress is right for you. We recommend to start by looking at this firm full-size mattress to give you a better idea. These hybrid mattresses offer pressure point relief to properly align the spine. With even weight distribution, they will balance body mass. Featuring a variety of foams, they offer just the right amount of comfort you desire. Hybrid mattresses move heat away from your body, allowing you to stay cool all night long. One downside is that they are expensive, so if you're looking for a cheaper mattress, you should consider something else.

Memory Foam Mattresses

Before you buy, you'll want to decide if a memory foam mattress is right for you. We recommend to start by looking at this firm full-size mattress to give you a better idea. These mattresses provide pressure-point relief by supporting the shoulders and hips. They are built with various foam types, which provide just the right level of comfort you need. They have superior motion isolation, so restless sleepers would benefit from these mattresses. However, these memory foam mattresses can smell a bit like chemicals initially, so you should air them out for at least 24 hours before putting sheets on. Moreover, they aren't waterproof, so any encounter with moisture can cause degeneration and decrease their usable life.

Mattress Thickness: What to Know Before You Pick Out Your Firm Full-Size Mattress
Under 6 Inch Mattresses

Do you prefer a thin mattress? Check out this firm full-size mattress. These under 6 inch mattresses are easy to move thanks to their compact build. They are ideal for trundle beds due to their slim build, which will be convenient for guests or slumber parties. They are suitable to use with standard-size sheets, so it will be easy to find linens that fit. Something to keep in mind is that they provide less support than other mattresses, so if you suffer from joint or back pain, then you should consider a thicker mattress. In addition, they wear out quickly, so they will need to be replaced more frequently. These are just a few facts to help you decide what kind of firm full-size mattress you need.

6-8 Inch Mattresses

There are only two firm full-size mattresses with a thickness of 6-8 inches. These 6-8 inch mattresses are ideal for trundle beds, which will be convenient for sleepovers. They are suitable to use with standard-size sheets, so it will be easy to find linens that fit. They are easy to transport, which make moving them through hallways simple. One downside is that they wear out quickly, so you will have to replace them more often. In addition, they sometimes don't provide the adequate level of comfort and support for the average person, so if you are prone to joint or back pain, then you should consider a thicker mattress. Look at this awesome firm full-size mattress if a mattress with 6-8 inch thickness is what you need.

8-10 Inch Mattresses

Looking for a firm full-size mattress that's not too thick or thin? There are 12 for you to check out. These 8-10 inch mattresses are less likely to cave in, so the surface will remain flat to ensure proper support over time. They are suitable to use with standard-size sheets, so it will be easy to find linens that fit. They have a standard thickness, so you can rest assured knowing that they'll fit in almost any bed frame, unlike super thick mattresses. One downside is that these mattresses wear out quickly, so they won't last long before beginning to deteriorate. On top of that, they sometimes don't provide the proper level of comfort and support for the average person, so if you are prone to joint or back pain, then you should look for a thicker mattress. Take a look at this awesome firm full-size mattress if a mattress with 8-10 inch thickness is what you're looking for.