Best Firm Mattress Box Spring Sets in 2026

General Note: Please allow 24 to 72 hours for your Mattress to regain its full shape. Any memory foam will expand faster in a warmer room. In cold temperature, at delivery, your mattress may take a bit longer to return to full sized from its compressed state.The expansion time of the mattress will vary as per the surrounding.

54" W x 75" L x 8" H,Perfect solution for Back To School, great for kids' rooms, bunk beds, and dorms

The latest technology in memory foam mattresses, 2 inches of gel-infused memory foam for breathability and temperature regulation on top of 6 inches of high-density base foam for support, pressure point relief, and proper spinal alignment

Set Up: Simply take your mattress out of the box and enjoy watching it decompress. Jumping, walking, and sleeping on your mattress can speed up the process.

Set Up: Simply take your mattress out of the box and enjoy watching it decompress. Jumping, walking, and sleeping on your mattress can speed up the process.

RESPONSIVE HYBRID DESIGN – The contouring comfort of memory foam and the durability and bouncy feel of steel springs come together to create our most popular hybrid mattress ever

UNBEATABLE VALUE – Comfort meets value when it comes to this affordable twin mattress, it’s made with durable materials to give you and your family good sleep for many years to come

MEDIUM-FIRM FEEL – With multiple supportive layers, this medium-firm twin mattress provides just the right amount of support, perfect for bunk beds, kid’s rooms, RVs, guest rooms, and more

MEMORY FOAM MATTRESS: For sound sleep you've always dreamed of. This body contouring memory foam mattress delivers amazing support, pressure relief and comfort.General Note: Please allow 24 - 72 hours for your Mattress to regain its full shape. Any memory foam will expand faster in a warmer room. In cold temperature, at delivery, your mattress may take a bit longer to return to full sized from its compressed state.The expansion time of the mattress will vary as per the surrounding.Set Up: Simply take your mattress out of the box and enjoy watching it decompress. Jumping, walking, and sleeping on your mattress can speed up the process.

12" PROFILE: Designed with layers of memory foam for support and pressure relief, all with a comfortable feel. The support foam core reduces motion transfer for peaceful, undisturbed sleep

PLUSH SUPPORT: Thick layers of memory foam contour to your body and deliver amazing support, pressure relief and comfort for all types of sleepers

General Note: Please allow 24 - 72 hours for your Mattress to regain its full shape. Any memory foam will expand faster in a warmer room. In cold temperature, at delivery, your mattress may take a bit longer to return to full sized from its compressed state.The expansion time of the mattress will vary as per the surrounding.Set Up: Simply take your mattress out of the box and enjoy watching it decompress. Jumping, walking, and sleeping on your mattress can speed up the process.

AS COOL AS IT GETS - Settle in to a bed made with our most cooling formula yet, promising perfectly temperature-regulated sleep and a clean feeling night after night, all thanks to our enveloping memory foam packed with cooling gel and green tea

PRESSURE-RELIEVING FOAMS – Layers of ultra-cooling gel and green tea infused memory foam, soft comfort foam and durable, high density base foam

RELIEVES PAINS & DAMPENS PARTNER’S MOVEMENTS- Novilla 12'' gel memory foam medium firm king mattress includes 4 different foam layers. Gel memory foam is combined with comfort foam to distribute pressure and mold to your body. And the two layers high density foam that improve durability, which to give your body support for proper spinal alignment. Also to resist sagging and prevent roll-off. Whether you sleep alone or next to a partner, there is no disruption..Set Up: Simply take your mattress out of the box and enjoy watching it decompress. Jumping, walking, and sleeping on your mattress can speed up the process.

A SAFE & COMFORTABLE SLEEP ENVIRONMENT- Mattress is made of CertiPUR-US Certified foam, without any harmful off-gassing and substances like formaldehyde, mercury, and other heavy metals. The bed mattress cover use skin-friendly rayon fabric, heavenly soft to touch. Novilla king size memory foam mattress gives you a healthier and cloud-like experience.

KING MATTRESS IN A BOX & FITS ALL BED FRAMES- Such fun to receive a mattress that’s rolled and compressed in a box . Follow the instructions and see how the magic happens. It is easy to set up and fits all kinds of bed frames, even on the floor. Mattress is recommended 72 hours for air out and reshape.

ULTIMATE COMFORT: Enjoy a restful sleep on this queen-size mattress with a soft knitted fabric top and premium high-density foam over a pocket spring core that is compatible with trundle beds, platform beds, and adjustable bed frames

MOTION REDUCING SUPPORT: The hybrid design combines foam and pocket spring coils to cradle your body in every position, reducing motion transfer and relieving pressure points for undisturbed sleep

SAFE AND CERTIFIED: The CertiPUR-US Certified foam ensures a safe sleep environment, free from harmful substances so you can rest easy knowing your indoor air quality won't be compromised.Top:Fabric

Cushioned Firm support with Fiber Quilted Euro Box Top Cover, Green Tea Foam, and heavy duty Coil Springs

Infused with Green Tea extract and Castor Natural Seed Oil to naturally retard

Only the Highest Quality of Foam - Foam is CertiPUR-US Certified for durability, performance, and content

Molblly 10 inch Gel Memory Foam Mattress is designed with three layers all-foam system, improving support and heat dissipation, mattress layers include 2 inches memory foam, 2 inches of comfortable layer, and 6 inches of high density base support foam for ultimate comfort.

The memory foam mattress meets the CertiPUR - US Certified for performance, emissions, and durability, the high quality cover can brings you the luxury you crave.

All-foam bed design combined expertise and the best materials with advanced sleep technology. Memory foam conducive to continuous airflow & breathable; skin-friendly fabrics adapt to the environment to keep the mattress surface at the ideal sleeping temperature; Buoyant, no-sink support foams adapt and conform to your body for optimal pressure relief; Specialized foams reduce motion transfer of a partner so your sleep is undisturbed.

General Note: Please allow 24 - 72 hours for your Mattress to regain its full shape. Any memory foam will expand faster in a warmer room. In cold temperature, at delivery, your mattress may take a bit longer to return to full sized from its compressed state.The expansion time of the mattress will vary as per the surrounding.Set Up: Simply take your mattress out of the box and enjoy watching it decompress. Jumping, walking, and sleeping on your mattress can speed up the process.

DURABLE AND SOFT: Heavy gauge tempered steel coils provide consistent support, while the quilted fabric cover and deep foam layer ensure comfort

VERSATILE PROFILE: Ideal as bunk bed mattress, day bed mattress, trundle bed mattress, RV mattress, or kids mattress. Firm profile is great for back or stomach sleepers

! Warning: Be cautious and keep distance when opening the mattress from the plastic, as it may have a risk to smack people when restoring.Individual Pocket Spring -- Supported by hundreds of quality and stainless Individual pocket spring, each spring work independently to offer an all-over and average support to 7 parts of your body (Feet, legs, hips, waist, shoulders, neck, head). Excellent shock-absorption and resilience, cater your vertebral well, help adjust and correct your sleeping posture

Vesgantti Luxury Support System -- Luxury mutilayer foam and pocket spring support systerm not just providing better support for your body, but also can absorb more pressure come from your body and the spring, providing more buffers for your body. Fully relax your muscles, greatly improve your sleeping quality

Breathable and Healthy -- Ultimate luxury slow springback foam made of high density and first-class temperature-sensitive material, comfortable and breathable, can expel the steamy sweat from the contact surface between you and mattress so to keep body comfortable and dry when sleeping

【Motion Isolation for a Peaceful Undisturbed Sleep】The individual innerspring pocket coils in this king mattress work independently, you don't have to worry about waking up your sleeping partner every time you climb into or out of bed or change position. Pocket coils are separated by the isolated fabrics and there is little feel of coils underneath.

【Ergonomic Support and Pressure Relief】 Coolvie’s innovative 5-zone spring support systems are designed to work in perfect harmony with foams to ensure a balanced, refreshed sleep with less tossing and turning and minimal partner disturbance. Independent pocketed Spring design ensures that your body weight is evenly absorbed and distributed comprehensively from head to toe throughout the mattress. Also provides the targeted support to your body, proper back support & alignment.

【Stay Cool with Whole Night】 This 12 inch king size mattress is designed with 3D soft knit fabric on the top cover which is breathable and skin-friendly, absorbing moisture and balancing body temperature. The open cell high density foam under the cover promotes air flow when sleeping on this mattress. You don't need to worry about overheating.

FIRM FEEL – This Lucid mattress includes 1 inch of ventilated gel memory foam and 4 inches of bamboo charcoal infused support foam for a firm feel ideal for side, stomach, and back sleepers.General Note: Please allow 24 - 72 hours for your Mattress to regain its full shape. Any memory foam will expand faster in a warmer room. In cold temperature, at delivery, your mattress may take a bit longer to return to full sized from its compressed state.The expansion time of the mattress will vary as per the surrounding.Set Up: Simply take your mattress out of the box and enjoy watching it decompress. Jumping, walking, and sleeping on your mattress can speed up the process.

MEMORY FOAM – A 1-inch layer of responsive memory foam provides a soft support, containing more comfort than a traditional innerspring mattress. Memory foam layer also contains ventilation holes for easy air transfer for your bed.

GEL INFUSION – Top layer of the mattress contains ventilated memory foam infused with cooling gel, capturing and dissipating heat to help regulate body temperature for a more comfortable sleep climate

HIGH-QUALITY INNOVATIVE FOAM: All the benefits of outdated materials like latex and memory foam without the drawbacks like sinking in or sleeping hot. Our foam sleeps cool and is the ideal balance of soft and firm.

AFFORDABLE WITHOUT CUTTING CORNERS: By focusing in on the main components of great sleep, comfort and support, we were able to make a remarkably comfortable mattress at a price that’s accessible to everyone.

AMAZON EXCLUSIVE: We’re bringing the expertise that we have gained over the years to our exclusive Nod by Tuft & Needle. Backed by the Tuft & Needle brand, you can expect a beautiful, high-quality product at a fair price, shipped to your door.

365-NIGHT HOME TRIAL & FOREVER WARRANTY - Our industry-leading trial period and warranty starts the day your Nectar mattress is delivered. Sleep on it for an entire year in all four seasons. Your mattress is guaranteed for as long as you own it.

MEMORY FOAM MEETS SPRINGS - Nectar Hybrid combines CertiPUR-US Certified gel memory foam with Infinity edge support innerspring coils for contouring support and boosted breathability. The springs in our innovative hybrids are individually wrapped with thicker coils around the perimeter for excellent edge-to-edge support and minimal motion transfer.

SIX LAYERS OF COMFORT - Have a refreshing rest on a heat-wicking cover with cooling technology and Microban protection. Gel memory foam cradles your body and relieves pressure, while the dynamic transition layer provides tailored support and proper spinal alignment. Individually-wrapped coils ensure edge-to-edge support, plus a conventional foam base gives stability to layers on top. The shift-resistant lower cover with handles makes it easy to move.

100% Natural Organic Cover and Ventilated Cooling Memory Foam - Highest Rated Non Toxic Foam

Independently superbly pocketed 15-gauge pocket coils

for added softness. This has a COMFORT Medium Firm FEEL. This is ideal for people with back issues.

Set Up: Simply take your mattress out of the box and enjoy watching it decompress. Jumping, walking, and sleeping on your mattress can speed up the process.

Gel Memory foam - Our mattress is a gel memory foam boxed mattress designed for various sleepers. It helps you sleep cool and conforms to every curve. Get support where you need it, and comfort where you want it.

Perfect support in any position - whether you're a side sleeper, a back sleeper, a stomach sleeper, or just tossing and turning, our mattresses provide the best hardness, coolness and comfort.

High quality materials: our memory foam mattress, combined with professional knowledge and the best materials, helps to provide advanced sleep technology. Gel memory foam provides continuous airflow to ensure cool sleep at night.

🍃【Breathable Mattress Design 】 The 10 inch queen size mattress is designed with 3D soft knit fabric on the top cover which is breathable and skin-friendly, absorbing moisture and balancing body temperature. High density memory foam under the cover promotes air flow when sleeping on this queen size mattress. Coolvie mattress provides a cosy environment for better sleep.

💏【No Distrution, Motion Isolation】The individual innerspring pocket coils in this bed mattress work independently, providing a non-disturbed sleep even your partner turn or toss in the middle of the night. Pocket coils are separated by the isolated fabrics and there is little feel of coils underneath.

👍【Medium Firm & Supportive】 Combined with hundreds of individual pocket springs, this mattress queen size offers sleepers with full support from head to toe. The hybrid construction makes Coolvie mattress considered to be medium firm, super comfortable with enough support and bounce. Dimensions: in 80 in L x 60 in W x 10 in H

COMFY & BREATHABLE TWIN MATTRESS - This twin size mattress knitted fabrics are skin friendly and super breathable, it can help to absorb moisture and balance your body temperature. Coolvie unique air-hole memory foam is hidden in the bottom of knitted fabrics. Larger air holes can speed up the flow of air and adjust the hardness of the mattress, providing you a cooling and stress releasing sleep.

FIRM MATTRESS WITH MOTION ISOLATION - This firm twin mattress constructed with comfortable memory foam and durable pocket innersprings. These pocket innersprings work independently, so they can absorbed over 90% motion disturbances from your partner. This firm mattress perfectly contouring to your body curve from head to toe, bouncy yet supportive, realease your body pain.

SLEEP IN HEALTH ALL THE TIME - Please be rest assured there is NO fiberglass inside. All foams are made consistent with CertiPUR-US standard, free of harmful substances and other heavy metals,which is suitable for all people, including the elderly and the young.

Set Up: Simply take your mattress out of the box and enjoy watching it decompress. Jumping, walking, and sleeping on your mattress can speed up the process.

Set Up: Simply take your mattress out of the box and enjoy watching it decompress. Jumping, walking, and sleeping on your mattress can speed up the process.

General Note: Please allow 24 - 72 hours for your Mattress to regain its full shape. Any memory foam will expand faster in a warmer room. In cold temperature, at delivery, your mattress may take a bit longer to return to full sized from its compressed state.The expansion time of the mattress will vary as per the surrounding.

LEVELS OF COMFORT - Self-contouring and responsive, delivering ergonomic support and fast response for immediate comfort and relaxation. The gel-infused in the memory foam provides a cooler and more comfortable sleep surface. Open design ensures better movement of air inside the mattress layers, allowing efficient transfer of heat away from the body during sleep.

ERGONOMIC SUPPORT - Long lasting and resistant to body impressions delivers a comfortable sleep surface with firm support. The ability of the memory foam to use body heat and pressure to mold to your exact shape is one of its major benefits. This self-contouring ability allows firm support for the natural alignment of your body; this is good for the spine and enhances lumbar support.

PRESSURE & PAIN RELIEVE - Sweetnight 12 inch king mattress adopts individually wrapped coils, which can adjust independently to ensure support and perfectly contour your body, relieving pressure points along your neck, shoulders, back, and hips..General Note: Please allow 24 - 72 hours for your Mattress to regain its full shape. Any memory foam will expand faster in a warmer room. In cold temperature, at delivery, your mattress may take a bit longer to return to full sized from its compressed state.The expansion time of the mattress will vary as per the surrounding

MOTION ISOLATION - The king size hybrid mattress works independently to provide a localized bounce in different zones. Each coil moves independently for more targeted support and reduces motion transfer between partners for an undisturbed night of rest..Set Up: Simply take your mattress out of the box and enjoy watching it decompress. Jumping, walking, and sleeping on your mattress can speed up the process.

COOL SLEEP - The pillow top mattress is infused with gel memory foam, adjusts the mattresses temperature to make you sleep cool. Combines with the breathable cover, you'll wake up refreshed and ready to start a new day with Sweetnight spring mattress.

10 INCH TALL: 10 Inch Full Mattresses with the dimensions 75"L x 54"W x 10"T made with 100% Natural Organic Cotton to give you comfort firm sleep.

BREATHABLE & PRESSURE RELIEVING: Multi-layered Pressure Relieving & Cooling Memory Foam. The outside cover comprises a cooling material, and the memory foam layer is injected with gel foam, which regulates your body's temperature and keeps the mattress cool in the summer and warm in the winter.

POCKETS: For added comfort and plushiness the luxury Mattress comes with independently packed 15-gauge pocket spring coils with Euro Pillow Top, Cool Memory Foam to offer Comfort Plush Feel, ideal for people with back issues.

【MATERIAL & CONSTRUCTION】: Iyee Nature 12 inch king mattress dimensions: 76"*80"*12".To improve support and heat dissipation, Iyee Nature 12 inch Cooling-Gel Memory Foam Mattress is designed with three layers all-foam system. To improve support and heat dissipation，mattress include 2.5” memory foam, 2.5” comfortable layer, and 7” high density base support foam for ultimate comfort.

【HEALTH & SKIN-FRIENDLY MATTRESS】: The foam has been certified by CertiPUR-US and Oeko-Tex Standard 100. Does not contain harmful substances such as formaldehyde, mercury and other heavy metals, is healthy and environmentally friendly, ensuring that you and your family have no worries sleep. Mattress fabrics are all skin-friendly fabrics.

【COMFORTABLE & BREATHABLE】:Medium-plush feel; memory foam, transition foam, and bring soft and gentle comfort underpinned by a well-balanced layer of support.Memory foam conducive to continuous airflow & breathable. no-sink support foams adapt and conform to your body for optimal pressure relief. Medium Firm Feel Mattress.

SLEEP SOUNDLY - Rimensy 14 inch king size mattress combines the innerspring wrapped coils with the cooling gel memory foam for an optimal sleep experience. The pressure-relieving foam cradles your body shape so you awake free of aches and pains and fresh as a daisy.

COOL TO SLEEP ON - The cooling gel particles, air-flow between coils and the hypoallergenic fabrics maintain a comfortable climate all night, making this twin bed more breathable.

ISOLATED MOTION - The individually pocketed coils provide enough support for proper spinal alignment and absorb motion disturbance between partners, allowing your deep sleep not to be disturded.

STAY COOL ALL NIGHT LONG - Novilla hybrid mattress covers are made of high-end knit fabric with a comfortable and breathable surface. Cooling Gel-Infused Memory Foam enhances airflow, helps dissipate body heat and stabilizes your sleep temperature, offering a cool sleep experience.

BALANCE SUPPORT & PRESSURE RELIEF - Combined the Supportive of pocketed springs with the comfort and adaptability of memory foam to create a comfortable yet supportive mattress. The independent pocketed coils balance your body weight and provide strong support to every part of your body. Memory foam actively contours to your body curve to align the spine and relieve pressure point aches and pains. The mattress has good elasticity and can be used for many years.

MOTION ISOLATION & EDGE SUPPORT - Independent support between the springs, eliminates the movement of interference, avoiding friction between each other to make noise, and providing you with a noise-free sleep, you can wake up feeling energetic and refreshed after a night of undisturbed sleep. The thickened springs at both edges improve the edge support of the mattress, so you won't feel unstable sleeping near the edge of the mattress or roll off.

✅ Comfort and quality are top priorities for many mattress shoppers, and a high-density foam mattress can give you both. If you're looking for a durable, comfortable mattress that won't wear down over time, then ours is the perfect choice - every foam mattress we make is made with high-density foams that are produced right here in the USA! Compare our product weight to other companies and see the difference in quality yourself!.

✅ If you're looking for a good quality mattress that is free of fiberglass, you need to look no further than the Monterey Mattress. With the Monterey Mattress, you don't have to worry about your skin becoming irritated by fiberglass as its specially designed knit fire sock provides protection without sacrificing comfort. The Monterey Mattress is perfect for those with allergies or asthma who are concerned about the health implications of fiberglass exposure in mattresses.

✅ If you're looking for a mattress that not only provides a stylish look but also maximum comfort and support, then you won't be disappointed with this one. It features a HyPUR-gel TOP LAYER which evenly distributes your body weight to reduce pressure points - ensuring that no matter what your sleeping position is, you can get the restful sleep you deserve. Countless people swear by this mattress - try it today and experience the ultimate level of comfort and luxury.