Best 9-Inch Medium Firm Mattresses


Our review process

We've already done all the heavy lifting researching 9-inch medium firm 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 grasp on what kinds of mattresses are on the market, so you can confidently purchase a mattress that will ensure comfortable sleep for years to come.

There are some things we think you'll want to know about 9-inch medium firm mattresses. These mattresses are perfect for couples where one likes to sleep on their side and the other on their back or stomach. They are built with a 29-31 pound indentation load deflection ranking and are perfect for those who usually move from their back to sides when sleeping. However, they are more likely to sink in over time, so they will become less supportive and comfortable with prolonged use.

With a standard thickness, thick mattresses can fit in nearly all bed frames. Less likely to cave in, they will provide proper support, even after long-term use. However, they provide less support than other mattresses, which can lead to painful and sleepless nights. Also, they tend to wear out quickly, so they will need to be replaced more often.

Our Top Ranking Mattresses
Customer Rating
Brand
Select Luxury
Size
queen
Type
memory foam
Customer Rating
Brand
Spring Coil
Size
queen
Type
memory foam
Customer Rating
Brand
Dream Solutions USA
Size
queen
Type
foam mattress
Best Overall Score
An image of Select Luxury OVS0905 Medium Firm Memory Foam Queen-Size 9-Inch Mattress

For a good night's rest and ultimate comfort, select a Select Luxury Medium Firm Memory Foam Queen-Size Mattress. Available in a queen-size, this Select Luxury mattress provides plenty of space to stretch out and sleep comfortably. It is dust mite resistant, ensuring that your sleeping space defends against mites and pests. It has a 9-inch thickness, so the mattress won't dip in the center or fall on the sides. It has a medium firm comfort level, providing all types of sleepers who are looking for the perfect mix of softness and support.

This Select Luxury mattress has a stretch knit cover, keeping your mattress looking newer for longer. 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 antimicrobial benefits, which make it great for people who suffer from allergies. It helps reduce tossing and turning at night, improving your quality of sleep.

    Pros
    • Medium firm mattress will provide the support needed to keep your body straight
    • Features antimicrobial fibers, making it ideal for people who are allergic to mold, dust mites, or pollen
    • Helps eliminate tossing and turning at night, drastically improving your quality of sleep
    Cons
    • Queen-size doesn't provide ample space for couples
    • Medium firm mattress can put painful pressure on pressure points
    • 9-inch thickness wears faster than other thicker mattresses
Runner Up
An image of Spring Coil 70099BW-5/0 Medium Firm Memory Foam Queen-Size 9-Inch Mattress

Need better support for both your upper and lower body while you sleep? You might want to consider purchasing the Spring Coil Medium Firm Memory Foam Queen-Size Mattress. Available in a queen-size, this orthopedic mattress gives enough space to stretch out and sleep comfortably. It has a supportive design, aligning your spine horizontally when sleeping on your side. It features a medium firm comfort level, so it won't sag easily. Designed with orthopedic quality, it distributes your body's weight in order to relieve stress on the spine. It has a 9-inch thickness, so the mattress will not sag in the middle or collapse around the edges.

Featuring a memory foam construction, this orthopedic mattress re-contours itself to your body if you moved around in your sleep. Featuring three layers, it offers extra firmness on pressure points and added stability for your back. Made with durable materials, it will stay in excellent condition for years to come. This Spring Coil mattress is designed with a soft cover and features a removable cover, so you can quickly freshen up your mattress by washing it.

    Pros
    • Medium firm mattress keeps you comfortable and aligned throughout the night
    • Supportive design ensures proper spinal support and alignment
    • Features an orthopedic design, preventing lower and upper back discomfort
    Cons
    • Queen-size doesn't provide ample space for couples
    • Medium firm mattress can put painful pressure on pressure points
    • 9-inch thickness wears faster than other thicker mattresses
For Couples
An image of Dream Solutions USA Chiro Premier Medium Firm Foam Queen-Size Firm Poly Foam 9-Inch Mattress

For a good night's sleep and endless comfort, choose a Dream Solutions USA Chiro Premier Medium Firm Foam Queen-Size Mattress. With a 9-inch thickness, this Dream Solutions USA mattress provides you with a sturdy sleeping surface that won't sag over time. Available in a queen-size, it gives plenty of space to stretch out and sleep comfortably. With a medium firm comfort level, it helps your body maintain correct posture to keep your back from bending.

Featuring a foam construction, this orthopedic mattress reduces pressure points and improves blood flow. This firm poly foam mattress is built with a VertiCoil innerspring core, which gives more durability to the mattress and also reduces sagging over time. It has a supportive design, aligning your spine horizontally when sleeping on your side. Providing a reversible design, it can be flipped over to extend the lifespan of your mattress.

    Pros
    • Medium firm mattress conforms to the curves of your spine in order to keep your body straight
    • Firm poly foam core prevents soft spots and sagging
    • Features a VertiCoil innerspring core, providing more support around the perimeter and edges of the mattress
    Cons
    • Queen-size doesn't provide ample space for couples
    • Medium firm mattress can put painful pressure on pressure points
    • 9-inch thickness wears out faster than other thicker mattresses
Additional Picks
An image of Spring Coil Medium Firm Innerspring Queen-Size Pocket Spring Coil 9-Inch Mattress

For endless comfort and a restful night's sleep, consider the Spring Coil Medium Firm Innerspring Queen-Size Mattress. This Spring Coil mattress features a medium firm comfort level, which is suitable for people who benefit from precise spinal alignment or improved blood circulation. It features a 9-inch thickness, so the mattress won't dip in the center or collapse on the sides. This Spring Coil mattress is available in a queen-size, offering more legroom than a full-size mattress. Featuring an innerspring construction, it will adjust easily to your sleeping position. This Spring Coil mattress has a supportive design, aligning your spine horizontally when sleeping on your side. It is suitable to use for platform beds and standard box springs.

    Pros
    • Medium firm mattress keeps your body comfortable and aligned throughout the night
    • Supportive design ensures proper spinal support and alignment
    • Comes rolled to make it easy to transport
    Cons
    • Queen-size doesn't provide ample space for couples
    • Medium firm mattress can put uncomfortable pressure on pressure points
    • 9-inch thickness wears faster than other thicker mattresses
An image of Dreamfoam Bedding UDCQEuro-SHQ-C6 Medium Firm Foam Queen-Size Foam Base 9-Inch Mattress

For a better night's rest and endless comfort, opt for a Dreamfoam Bedding Medium Firm Foam Queen-Size Mattress. This Dreamfoam Bedding mattress contours to your body, which offers unique support. It features a medium firm comfort level, offering more support to pressure areas that are commonly stressed. This Dreamfoam Bedding mattress has a supportive design, aligning your spine horizontally when sleeping on your side. Available in a queen-size, it provides enough space to stretch out and sleep comfortably. Designed with a foam base, this Dreamfoam Bedding mattress sufficiently supports all main pressure areas of your body. It features a 9-inch thickness, so your mattress won't dip in the center or fall around the edges. With a foam construction, this Dreamfoam Bedding mattress needs very little maintenance and can last for long periods of time.

    Pros
    • Medium firm mattress keeps you aligned and comfortable throughout the night
    • Foam base supports each part of the body evenly and individually by distributing your weight across the mattress
    • Supportive design ensures proper spinal support and alignment
    Cons
    • Queen-size doesn't provide ample space for couples
    • Medium firm mattress can put uncomfortable pressure on pressure points
    • 9-inch thickness wears out faster than other thicker mattresses
An image of Continental Sleep 900Q-1 Medium Firm Pocketed Coil Queen-Size Individually Wrapped Pocket Coils 9-Inch Mattress

For a better night's rest and ultimate comfort, choose a Continental Sleep Medium Firm Pocketed Coil Queen-Size Mattress. This orthopedic mattress features a medium firm comfort level, which will provide adequate support to the spine without putting pressure on it. Available in a queen-size, it gives enough space to stretch out and sleep comfortably. It has a 9-inch thickness, so the mattress won't dip in the center or collapse on the sides.

This orthopedic mattress features a pocketed-coil construction, which can accumulate dust more easily. It is built with individually-wrapped pocket coils to help in reducing motion transfer between partners. This orthopedic mattress has a supportive design, aligning your spine horizontally while sleeping on your side. Designed to conform to your body, it provides improved support and comfort to reduce pain in sensitive areas of the body.

    Pros
    • Medium firm mattress will support your joints and other vulnerable areas
    • Individually-wrapped pocket coils reduce disruption from you or your partner
    • Made to conform to your body for premiere pressure point relief
    Cons
    • Queen-size doesn't provide ample space for couples
    • Medium firm mattress can put painful pressure on pressure points
    • 9-inch thickness wears out faster than other thicker mattresses
An image of Bed Boss 8050 Medium Firm Memory Foam Queen-Size Foam Base 9-Inch Mattress

Are you looking to better support your upper and lower body at night? Take a look at the Bed Boss Medium Firm Memory Foam Queen-Size Mattress. Available in a queen-size, this BEDBOSS mattress provides enough space to stretch out and sleep comfortably. It has a foam base, so all major pressure areas are adequately supported. It features a 9-inch thickness, so the mattress won't dip in the center or fall on the sides. It has a medium firm comfort level, which provides extra support to keep the body from sinking. It has a design that contours to your body so that you will be fully supported during sleep. This BEDBOSS mattress has a supportive design, aligning your spine horizontally while sleeping on your side. It has a memory foam construction, allowing you to toss and turn and then re-contours to your body after you've settled. It is designed with a soft cover and has a jacquard cover, adding an extra layer of support to the mattress for a more luxurious sleep.

    Pros
    • Medium firm mattress promotes a deeper and more restful sleep
    • Features a foam base, ensuring all dominant pressure areas are sufficiently supported
    • Contours to your body, providing just the correct amount of support and comfort
    Cons
    • Queen-size doesn't provide ample space for couples
    • Medium firm mattress can put uncomfortable pressure on pressure points
    • 9-inch thickness wears out faster than other thicker mattresses
An image of Dreamfoam Bedding Medium Firm Foam Queen-Size Foam Base 9-Inch Mattress

For a better night's rest and ultimate comfort, choose a Dreamfoam Bedding Medium Firm Foam Queen-Size Mattress. This Dreamfoam Bedding mattress has a 9-inch thickness, which doesn't provide the most support. It has a supportive design, ensuring proper spinal support and alignment. Contouring to your body, it provides improved support and comfort to reduce pressure in sensitive areas of the body. It has a medium firm comfort level, providing sufficient support to the spine without putting pressure on it. Available in a queen-size, it offers more legroom and more width than a full-size mattress. It has a foam base, so all major pressure areas are adequately supported. It features a foam construction, which will adapt to fit your body shape.

    Pros
    • Medium firm mattress is great for people who require precise spinal alignment
    • Features a foam base, ensuring all major pressure areas are well supported
    • Supportive design ensures proper spinal support and alignment
    Cons
    • Queen-size doesn't provide ample space for couples
    • Medium firm mattress can put uncomfortable pressure on pressure points
    • 9-inch thickness wears faster than other thicker mattresses
An image of Continental Sleep 900K-1 Medium Firm Pocketed Coil King-Size 9-Inch Mattress

For a better night's rest and endless comfort, opt for a Continental Sleep Medium Firm Pocketed Coil King-Size Mattress. Available in a king-size, this orthopedic mattress offers plenty of room to spread out and relax. Made to conform to your body, it can help prevent pressure in sensitive areas of the body. This orthopedic mattress has a supportive design, aligning your spine horizontally while sleeping on your side. It has a medium firm comfort level, providing superior support to stop the body from sinking. It has a 9-inch thickness, stopping your mattress from dipping in the center or collapsing on the sides. Designed with a pocketed-coil construction, this orthopedic mattress provides optimal comfort because it decreases pressure points.

    Pros
    • Medium firm mattress keeps you comfortable and aligned all night long
    • Made to conform to your body for superior pressure point relief
    • Supportive design ensures proper spinal support and alignment
    Cons
    • King-size can be difficult to move
    • Medium firm mattress can put uncomfortable pressure on pressure points
    • 9-inch thickness doesn't provide the best support
An image of Spring Coil 7009BW-6/6 Medium Firm Memory Foam King-Size 9-Inch Mattress

Are you looking for a mattress that will give you better support for both your upper and lower body? Read on to learn about the Spring Coil Medium Firm Memory Foam King-Size Mattress. Built with durable materials, this Spring Coil mattress will stay in excellent condition for years to come. With a 9-inch thickness, it provides you with a sturdy sleeping surface that won't sag over time. It features a medium firm comfort level, which conforms to the natural curves of your spine to keep your body straight. This Spring Coil mattress is available in a king-size, so you can have as much space as possible.

This Spring Coil mattress is designed with a soft cover and has a zippered cover, making it easy to place on and take off your mattress. It features a memory foam construction, which works for all possible sleeping positions. It has three layers, working together to ensure both comfort and support. This Spring Coil mattress has a supportive design, which ensures proper spinal support and alignment.

    Pros
    • Medium firm mattress keeps your body comfortable and aligned throughout the night
    • Supportive design ensures proper spinal support and alignment
    • King-size is perfect for big rooms with a lot of space
    Cons
    • King-size does not fit in small rooms
    • Medium firm mattress can put uncomfortable pressure on pressure points
    • 9-inch thickness provides less support than thicker mattresses
Still Need Some Help Narrowing Down Your Options? Here's Some Additional Information to Consider:
Choosing Your Mattress Type
Memory Foam Mattresses

If you're thinking about getting a memory foam mattress, this 9-inch medium firm mattress might be a good choice. These mattresses have pressure-point relief, which helps soothe any tension in your joints. Designed with a range of materials, they will provide the right amount of comfort for a great night's sleep. They boast superior motion isolation technology, so restless sleepers would benefit from these mattresses. One downside is that these mattresses can smell a bit like chemicals at first, so you'll have to air them out for at least 24 hours before putting sheets on. Another drawback is that they aren't waterproof, so you'll want to be careful and make sure that they don't encounter too much moisture.

Innerspring Mattresses

If you're thinking about getting an innerspring mattress, this 9-inch medium firm mattress could be a good choice for you. These breathable innerspring mattresses will provide proper airflow to prevent moisture build-up. They are made from various materials, giving you a range of foam densities to pick from. Designed to dissipate heat instead of absorb it, they ensure that you'll stay cool and comfortable throughout the night. Featuring firm edges, they will maintain their level surface for ideal support as time passes. One downside is that they sometimes make a lot of noise, potentially disturbing your sleep every time you move. Another downside is that they don't contour to your body, so many people feel like they're too hard.

Foam Mattresses

If you're thinking about getting a foam mattress, this 9-inch medium firm mattress might be a good choice. These foam mattresses offer pressure point relief to support sensitive areas, such as the shoulders and hips. Featuring a variety of foams, they offer the perfect amount of cushion. They feature superior motion isolation technology, so restless sleepers would benefit from these mattresses. Something to keep in mind is that they may retain your body heat, making it harder for you to fall and stay asleep throughout the night. Another downside is that they can smell a bit like chemicals initially, so you'll have to air them out for at least 24 hours before putting sheets on.

The Ins and Outs of 9-Inch Medium Firm Mattress Sizes
King-Size Mattresses

Having trouble deciding what size 9-inch medium firm mattress to get? These king-size mattresses measure 76" X 80" and are ideal for master bedrooms. They are built to spaciously accommodate couples, providing plenty of space for you to move around. Something to consider is that they are large and heavy, making them hard to move and flip. On top of that, they are not ideal for small spaces, taking up a majority of the free space in your room. Considering getting a king-size mattress? Check out this one.

Full-Size Mattresses

If you're in search of a full-size mattress, this 9-inch medium firm mattress might be right for you. These full-size mattresses measure 54" X 75" and are suitable for studio apartments. They are built to reasonably accommodate couples, with a snug fit between the two sleepers. One downside is that these mattresses have a narrow width, so you will have limited space to move when sharing your bed with another person. Moreover, they are short in length, so they might not be a convenient option if you're taller than 6'3".

Queen-Size Mattresses

If you're in search of a queen-size mattress, the 9-inch medium firm mattress could be right for you. Queen-size mattresses are ideal for couples, providing some extra space for two people. They measure 60" X 80" and are ideal for master bedrooms. One downside is that they are not great for small areas, since they can make the room look somewhat cluttered. Also, they are smaller than king-size mattresses, so if you enjoy having a wider sleeping area, you should think about getting a larger mattress.