Best Sleep Sync Firm Mattresses for 2019


Our review process

We've already done all the grunt work researching Sleep Sync firm mattresses. That way, you don't have to pour over confusing infographics about selecting the right one for you. By reading this guide, you'll have an excellent understanding of what kinds of mattresses are available on the market, so you can confidently buy a mattress that will ensure comfortable sleep for years to come.

If you've decided on a Sleep Sync firm mattress but want to know more about the brand, let's see what sets them apart. The company designs mattress models with various firmness levels and sells mattresses for an inexpensive price, so you can purchase something at a price point that fits your budget. Sleep Sync uses patented materials, which demonstrates how its mattresses are uniquely manufactured just for you. Now that you know all about Sleep Sync, you'll want to hear all about Sleep Sync firm mattresses.

Improving circulation and blood flow, these mattresses promote deeper sleep. These mattresses have an indentation load deflection ranking of 34-36 pounds and are suitable for those who tend to sleep on their back. However, these mattresses might be uncomfortable if you're not accustomed to sleeping on hard surfaces, so it'll take some time to get used to them. On top of that, firm mattresses can put strain on specific pressure points, including the hips and shoulders.

Best Overall Score
An image of Sleep Sync OS11320QN Firm Gel Memory Foam Queen-Size 10-Inch Mattress

Do you want to go green? Consider the Sleep Sync Firm Gel Memory Foam Queen-Size Mattress. Available in a queen-size, this hypoallergenic mattress gives enough space to spread out and sleep comfortably. It eliminates motion transfer, so any type of movement won't disturb your sleep. Featuring antimicrobial benefits, it prevents the growth and survival of mildew or mold in your mattress. With a firm comfort level, it is great for people who rest on their back since it offers deeper spinal support. It has a 10-inch thickness, which ensures that it can sustain more weight and provide lasting durability.

This hypoallergenic mattress has a gel memory foam construction, which draws heat away from the body due to its better air circulation. This hypoallergenic mattress is made with eco-friendly fabric, so it is built of organic materials as opposed to dangerous chemicals. It features a removable cover, which allows for easy wash and care and provides ability to change cover to whatever design you prefer. It features pressure sensitive foam, helping support your sleeping position.

    Pros
    • Firm mattress provides superior support of your body for uninterrupted sleep
    • Antimicrobial benefits protect you from unsafe bacteria
    • Minimizes motion transfer, making it perfect for light sleepers
    Cons
    • Queen-size doesn't provide ample space for couples
    • Firm mattress can put painful pressure on pressure points
    • 10-inch thickness wears out faster than other thicker mattresses
Runner Up
An image of Sleep Sync SSO8008QN Firm Euro Top Queen-Size 8-Inch Mattress

For a better night's sleep and endless comfort, choose a Sleep Sync Firm Euro Top Queen-Size Mattress. This Sleep Sync mattress has an 8-inch thickness, which doesn't provide the most support. Made to fit your body, it provides enhanced support and comfort. Made with innovative pressure point relief technology, it enhances comfort and minimizes pain. With a firm comfort level, it is perfect for people who sleep on their back since it provides deeper spinal support. Available in a queen-size, this Sleep Sync mattress provides enough room to spread out and sleep comfortably. It features a Euro top construction, making it last longer since the mattress is denser. With a damask quilt cover, it will appear elegant.

    Pros
    • Firm mattress aligns your spine properly to ensure good posture while sleeping
    • Provides pressure point relief, reducing and alleviating tension in your muscles and joints
    • Designed to fit your body for maximum comfort and support
    Cons
    • Queen-size doesn't provide ample space for couples
    • Firm mattress can put painful pressure on pressure points
    • 8-inch thickness wears faster than other thicker mattresses
For Side Sleepers
An image of Sleep Sync OS11320EK Firm Gel Memory Foam King-Size 10-Inch Mattress

Looking to sleep sweetly in a mattress made free of harsh chemicals? The Sleep Sync Firm Gel Memory Foam King-Size Mattress is exactly that. Available in a king-size, this Sleep Sync mattress offers an ample amount of room to stretch out and relax. Designed with hypoallergenic materials, it is ideal for those who suffer from allergies or skin sensitivities. It features a firm comfort level, providing the support needed to keep your body straight. Featuring a 10-inch thickness, it will maintain its shape even with extra weight.

This thick mattress has a removable cover, so you can conveniently clean it. Designed with a gel memory foam construction, it gives off a unique plush feel. It has 3 lbs air-flow gel memory foam, 3 lbs air-flow gel memory foam, and convoluted foam layers. With eco-friendly fabric, it doesn't have dangerous chemicals that affect the environment and your health. Built with antimicrobial materials, it discourages the growth and development of bacteria. This hypoallergenic mattress minimizes motion transfer, making it perfect for light sleepers. It is built with pressure sensitive foam to help support your sleeping position.

    Pros
    • Firm mattress promotes a deeper sleep
    • Antimicrobial benefits ensure a cleaner sleep space
    • Reduces motion transfer, making it ideal for light sleepers
    Cons
    • King-size does not fit in small spaces
    • Firm mattress can put uncomfortable pressure on pressure points
    • 10-inch thickness doesn't provide the best support
For Couples
An image of Sleep Sync SSO6008QN Firm Innerspring Queen-Size Steel Coil 6-Inch Mattress

For a good night's sleep and endless comfort, opt for a Sleep Sync Firm Innerspring Queen-Size Mattress. Featuring an innerspring construction, this Sleep Sync mattress adjusts easily to your body shape. It has a firm comfort level, which ensures deeper sleep. Available in a queen-size, this Sleep Sync mattress gives enough space to stretch out and sleep comfortably. It is suitable to use for slatted bed bases, platform beds, and boxed mattresses.

    Pros
    • Firm mattress provides the support required to keep your body straight
    • Comes rolled, making it easy to place your mattress on the bed of your choice
    • Features a vacuum packed design, making it easy to transport it into the room you'd like
    Cons
    • Queen-size doesn't provide ample space for couples
    • Firm mattress can put painful pressure on pressure points
    • Innerspring construction can result in premature sagging of the material
Additional Picks
An image of Sleep Sync OVS1175EK Firm Memory Foam King-Size 12-Inch Mattress

Looking to sleep sweetly in a mattress made free of harsh chemicals? The Sleep Sync Firm Memory Foam King-Size Mattress is just that. With a memory foam construction, this Sleep Sync mattress allows you to toss and turn and then re-contours to your body after you've settled. Built with antimicrobial materials, it protects you from any toxic bacteria. It reduces motion transfer, making it ideal for light sleepers.

This thick mattress includes three layers and features a firm comfort level, which is perfect for people who require improved blood circulation and precise spinal alignment. Featuring a 12-inch thickness, it provides a lot of support and can hold more weight than thinner mattresses. It has 3 lbs open cell memory foam and GEL LUX synthetic latex foam layers. Available in a king-size, it ensures that you'll have a generous amount of space to spread out and enjoy a good night's sleep. It is designed with eco-friendly fabric, promoting a healthier indoor air quality. This Sleep Sync mattress is resistant to dust mites, protecting you against the factors that can contribute to allergic reactions.

    Pros
    • Firm mattress provides complete support of your body for restful and deep sleep
    • Features antimicrobial fabric, protecting you from dangerous mildew
    • Reduces motion transfer, making it ideal for restless sleepers
    Cons
    • King-size can be difficult to move
    • Firm mattress can put uncomfortable pressure on pressure points
    • 12-inch thickness can tend to appear too large in some bed frames
An image of Sleep Sync OVS1175CK Firm Memory Foam King-Size 12-Inch Mattress

Looking to sleep sweetly in a mattress made free of harsh chemicals? Go for the Sleep Sync Firm Memory Foam King-Size Mattress. This thick mattress is dust mite resistant, so your sleeping area will be allergy and pest-free. It is available in a king-size, so you can have as much space as possible. With a 12-inch thickness, it provides a lot of support and can hold more weight than thinner mattresses. It features a firm comfort level, which will adapt to the natural curves of your spine to keep your body properly aligned.

Featuring a memory foam construction, this Sleep Sync mattress allows you to toss and turn and then re-contours to your body after you've settled. It has open cell memory foam, GEL LUX synthetic latex foam, and HD foam layers. It has three layers, adding thickness and density to the mattress for a highly supportive feel. It eliminates motion transfer so that you won't be woken up by movement. It has antimicrobial benefits, which makes it suitable for people sensitive to allergies. It is designed with eco-friendly fabric, so it is composed organic materials rather than dangerous chemicals.

    Pros
    • Firm mattress provides extra support to prevent the body from sinking
    • Antimicrobial benefits assist people susceptible to allergies
    • Reduces motion transfer, making it ideal for restless sleepers
    Cons
    • King-size does not fit in small spaces
    • Firm mattress can put painful pressure on pressure points
    • 12-inch thickness may appear too large in some bed frames
An image of Sleep Sync OS3805EK Firm Gel Memory Foam King-Size Temperature-Smart 8-Inch Mattress

Looking to sleep sweetly in a mattress made free of harmful chemicals? The Sleep Sync Firm Gel Memory Foam King-Size Mattress is exactly that. This Sleep Sync mattress features a firm comfort level, providing better balance to pressure areas that we tend to strain. Available in a king-size, it ensures that you'll have a lot of room to spread out and have a good night's sleep. It has an 8-inch thickness, preventing your mattress from sagging in the middle or falling on the sides. With resistance to dust mites, it makes it a suitable option for those who suffer from allergies.

This Sleep Sync mattress features a gel memory foam construction, carrying heat away from the body due to its better air circulation. It minimizes motion transfer, so you won't be awakened by movement. Featuring antimicrobial fabric, it is great for people who are sensitive to mold, dust mites, and pollen. It is eco-friendly, helping to significantly minimize your carbon footprint. It is built with temperature-smart foam.

    Pros
    • Firm mattress will adapt to the natural curves of your spine to keep your body properly aligned
    • Made with antimicrobial materials to decrease the chances of bacteria growing
    • Reduces motion transfer, making it perfect for restless sleepers
    Cons
    • King-size can be difficult to move
    • Firm mattress can put uncomfortable pressure on pressure points
    • 8-inch thickness doesn't provide the best support
An image of Sleep Sync Firm Memory Foam King-Size Pressure Sensitive 10-Inch Mattress

Looking for a low-emission and eco-friendly mattress? Consider the Sleep Sync Firm Memory Foam King-Size Mattress. This Sleep Sync mattress has a 10-inch thickness, so after long periods of time it won't sag in the middle. Available in a king-size, it ensures that you'll have a generous amount of room to spread out and enjoy a good night's sleep. It features a hypoallergenic design to minimize the symptoms of allergies. With resistance to dust mites, it makes it a good option for those who suffer from allergies. This thick mattress features a firm comfort level, which is ideal for people who require precise spinal alignment or improved blood circulation.

This Sleep Sync mattress has a removable cover, so you can easily clean it. With a memory foam construction, it reshapes itself to your body as you move around at night. It has 3 lbs memory foam and GEL LUX synthetic latex foam layers. Built with antimicrobial materials, it impedes the growth of bacteria. This hypoallergenic mattress eliminates motion transfer, making it great for light sleepers. Made with eco-friendly materials, it is built without dangerous chemicals, such as mercury, lead, and other heavy metals. It is designed with pressure sensitive foam. This hypoallergenic mattress comes with temperature-smart foam, regulating body temperature.

    Pros
    • Firm mattress provides superior support to stop the body from sinking
    • Antimicrobial benefits protect you from dangerous bacteria
    • Eliminates motion transfer, making it perfect for restless sleepers
    Cons
    • King-size can be difficult to move
    • Firm mattress can put uncomfortable pressure on pressure points
    • 10-inch thickness provides less support than thicker mattresses
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 wonderful choice for an environmentally-friendly option, free from toxic chemicals and low in VOCs. This thick mattress features a firm comfort level, providing support to the lumbar region in any sleeping position. Available in a full-size, it is perfect for comfortably accommodating one sleeper. It is dust mite resistant, minimizing your exposure to allergens. With a 12-inch thickness, this Sleep Sync mattress will maintain its shape and form even after prolonged use.

Designed with a memory foam construction, this thick mattress lets you toss and turn and then re-contours to your body after you've settled. It has open cell memory foam and GEL LUX synthetic latex foam layers. With three layers, it delivers extra firmness on pressure points and added stability for your back. Featuring antimicrobial benefits, it stops the growth and dispersal of bacteria. It minimizes motion transfer, making it perfect for restless sleepers. This thick mattress is eco-friendly, so it is composed organic materials rather than dangerous chemicals.

    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
An image of Sleep Sync SSO8008DB Firm Euro Top Full-Size 8-Inch Mattress

For a good night's rest and endless comfort, select a Sleep Sync Firm Euro Top Full-Size Mattress. This Sleep Sync mattress offers pressure point relief to enhance comfort and alleviate pain. With a firm comfort level, it requires bones to absorb the largest amount of pressure so there is minimal stress on muscles. It is made to fit your body to align joints to eliminate back and joint pain. Available in a full-size, this Sleep Sync mattress is perfect for accommodating one sleeper. It has an 8-inch thickness, preventing your mattress from dipping in the center or collapsing on the sides. It features a Euro top construction, making it last longer since the mattress is denser. Featuring a damask quilt cover, it will appear elegant.

    Pros
    • Firm mattress will conform to the natural curves of your spine to keep your body properly aligned
    • Offers pressure point relief, making it good for stomach sleepers
    • Contours to your body, providing just the right amount of support and comfort for a good night of rest
    Cons
    • Full-size does not comfortably accommodate couples
    • Firm mattress can put painful pressure on pressure points
    • 8-inch thickness doesn't provide the most support
Need Some Help Narrowing Down Your Options? Here's Some Additional Information to Know:
Mattress Type: Which One Is Right for You?
Gel Memory Foam Mattresses

Looking for a good gel memory foam mattress? This Sleep Sync firm mattress might be a good choice. With even weight distribution, these mattresses prevent sinking, sagging, or drooping from occurring. They feature a breathable design to enable air to circulate freely, which improves the lifespan of the mattress. Made of various materials, they will provide the right amount of comfort for a good night's rest. They have pressure-point relief, which helps soothe any soreness in your joints. Due to superior motion isolation, these gel memory foam mattresses will ensure your partner doesn't wake you when moving.

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 Sleep Sync firm mattress to give you a better idea. Designed with various foam types, these mattresses provide the perfect amount of comfort. Providing pressure-point relief, they offer additional support to sensitive areas such as the shoulders and hips. Featuring superior motion isolation, these memory foam mattresses will ensure your partner doesn't wake you when moving. A potential downside is that they can smell a bit like chemicals at first, so you should air them out for at least 24 hours before adding sheets. In addition, they aren't waterproof, so any encounter with moisture can cause degeneration and reduce their usable life.

Innerspring Mattresses

Before you make your purchase, you'll want to decide if an innerspring mattress is right for you. We recommend to start by looking at this Sleep Sync firm mattress to give you a better idea. Designed with firm edges, innerspring mattresses will maintain their even surface for substantial support over time. They feature a breathable design to enable air to circulate freely, which improves the lifespan of the mattress. They move heat away from your body, so you can stay comfortable all night. Available in a variety of materials, they will offer the just the right amount of comfort for an ideal night's rest. However, they are prone to premature sagging, reducing their lifespan. On top of that, they sometimes make a lot of noise, potentially disturbing your sleep every time you move.

The Sizes Available for Sleep Sync Firm Mattresses
King-Size Mattresses

Still deciding what size Sleep Sync firm mattress to get? These mattresses are ideal for couples, offering plenty of space for two people. They measure 76" X 80" and are ideal for master bedrooms. One downside is that they are not suitable for areas with limited room, making small areas look somewhat cluttered. In addition, these mattresses are large and heavy, making them difficult to move and flip. Now that you know some things about king-size mattresses, if you think they're a good choice for you, check out this one.

Full-Size Mattresses

Are you curious about a full-size mattress? This comfortable Sleep Sync firm mattress could be right for you. Full-size mattresses are suitable for couples, providing a closer fit between the two sleepers. They fit well in studio apartments and measure 54" X 75". One downside is that full-size mattresses have a narrow width, so you will have limited space to move when sharing your bed with someone else. Additionally, they are short in length, so if you're taller than 6'3", you might want to consider a longer bed.

Queen-Size Mattresses

Are you considering a queen-size mattress? We think this comfortable Sleep Sync firm mattress could be right for you. These mattresses are suitable for couples, offering some extra space for two people. They measure 60" X 80" and are perfect for master bedrooms. One downside is that they are smaller than king-size mattresses, so if you enjoy having a wider sleeping area, you should think about getting a larger mattress. Also, they are not great for areas with limited room, making small areas look somewhat cluttered.

Mattress Thickness: What to Know Before You Decide on Your Sleep Sync Firm Mattress
6-8 Inch Mattresses

There are only two Sleep Sync firm mattresses with a thickness of 6-8 inches. These 6-8 inch mattresses are great for trundle beds, which will be convenient for slumber parties. They are suitable to use with standard-size sheets, so it will be easy to find linens that fit. They are easy to carry, which make moving them through doorways simple. However, they tend to wear out quickly, so they won't last long before beginning to deteriorate. Additionally, they can get indentations if there's too much weight put on them, so if you're looking for a mattress for a couple, they're not the ideal choice for you. If you think that you might want to get a 6-8 inch mattress, here's one to take a look at.

8-10 Inch Mattresses

Trying to find a Sleep Sync firm mattress that's not too thin or thick? Check out an 8-10 inch mattress such as this one. 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 nearly all bed frames. However, they provide less support than other mattresses, so if you suffer from back or joint pain, then you should look for a thicker mattress. Another downside is that these mattresses wear out quickly, so you will have to replace them more frequently. These are a few facts to help you decide what kind of Sleep Sync firm mattress you need.

10-12 Inch Mattresses

There are only two Sleep Sync firm mattresses with a thickness of 10-12 inches. Thick mattresses are standard size, so you can rest assured knowing that they'll be able to fit in nearly all bed frames. They are less likely to cave in, so the surface will remain level to ensure adequate support over time. They are built with a strong design, making them more durable and able to sustain more weight. They are suitable to use with standard-size sheets, so it will be easy to find linens that fit. One downside is that they are higher off the ground than thinner mattresses, so getting into and out of bed is more difficult than it would be with a thinner mattress. Check out this awesome Sleep Sync firm mattress if a mattress with 10-12 inch thickness is what you're looking for.