Serta Define Nights Medium Mattress

Serta iComfort Memory Foam features zoned support from memory foam layers for contouring pressure-relief and breathability. With alternating levels of firmness, ergonomically design support zones in every Serta® mattress are designed to keep your body aligned as you sleep.

Bought this from Sleep City in Rochester NY for an extra day bed for disabled individual. Gino is an excellent guy who knew exactly what we wanted.. Jenna B. Wed Sep 23 2026

Comfort has never been more convenient. The Serta Sheep Retreat 10" Medium Gel Memory Foam Mattress-In-A-Box delivers long-lasting comfort right to your front door in our compact EZ-Tote box. Thanks to the unique combination of Serta Gel Memory Foam, Serta Transitional Support Foam, and Serta Foam Core you can get that sleep-til-noon rest you’ve always wanted. Your new mattress will help you stay cool, cradled, and supported, no matter what way you choose to sleep!

Received mattress on time in good condition as described .... Robert. Inverness, FL. Fri Aug 07 2026

The Serta Five Star Mattress Medium delivers comfort and convenience. Our mattress in a box fully expands quickly so you can sleep on it right away. This quilted innerspring mattress features our individually-wrapped coil system for durability and all-night support. Pillowsoft Aire Foam offers airflow and enhanced cushioning for exceptional comfort. Plus, Serta Pillowsoft Foam provides gentle contouring support. Looking for lower back care? A gel foam band provides our signature zoned comfort for the lumbar and hips. A breathable fabric cover helps you to rest well and wake up refreshed. The Serta Five Star Mattress—from box to bed in seconds.

Really happy with this mattress! It’s comfortable, supportive, and feels great to sleep on. It arrived in good condition and was easy to set up. Definitely happy with the purchase!. Scarlet. Louisville, KY. Wed Sep 30 2026

Are you worried that a soft mattress won't provide enough support? Our medium-firm hybrid mattress is the perfect selection. Combining pocketed springs and memory foam, it offers a medium firmness that provides optimal support. Ideal for a person who prefers a supportive yet plush surface. The memory foam conforms to your body's curves, relieving pressure points and reducing discomfort, especially for those people with back or joint pain. The individually pocketed springs provide targeted support, ensuring proper alignment for pain relief. Say goodbye to restless nights and say hello to the ultimate comfort with our mattress.

Mattress very comfy I love it I’m getting my son the same mattress just a different size. Emilie. Tue Oct 13 2026

Designed with cooling gel memory foam, this mattress seamlessly blends value and convenience with the durability and trusted comfort Serta is known for. Serta Mattress-in-a-Box collection delivers comfort at a value with convenient delivery—so you can rest easy night after night. *Only available in select models

Very comfortable and supporting. Never buying foam again hybrid is the way to go. Anonymous. Sun Oct 04 2026

Reach your Sheep Dreams with this 12” Gel memory foam mattress! Packed with three layers of foam, this mattress delivers optimized sleeping comfort. The 3-inch layer of premium gel-infused memory foam contours to the body for cradling comfort and allows airflow to help you stay cool and comfortable throughout the night. *Disclaimer - This product does not protect users against bacteria, viruses, germs, or other disease organisms.

This is my absolute favorite mattress! I have 1 in my master bedroom and now 1 in my guest bedroom. I also bought my daughter this mattress! I plan to get another for my second guest room as well! Kinda firm but also soft. Ive had other firm mattresses that I would wake up in the night with my body aching because it was too hard. I had spinal fusion on my lower back and too soft of a bed doesn't work. This mattress has been a game changer!. Tina. Watford City, ND. Thu Sep 17 2026

Sealy was among the first to create the hybrid, pairing the best qualities of innerspring and memory foam mattresses to deliver best-of-both-worlds comfort. Carefully engineered coils adapt and support every part of your body, while specialty foams conform and cushion for your most comfortable night’s sleep. Our classic Sealy Cool collection is engineered for a great night’s sleep, delivering trusted Sealy quality at an affordable price. Your mattress comes compressed in a box, combining Sealy quality with the convenience of easy transportation.

I was previously unaware of the concept of a mattress in a box. Upon visiting the Wayfair store, I had the opportunity to examine the mattress, having seen it advertised online. We proceeded to order it through the website due to the complimentary delivery service. It subsequently arrived packaged within a box. ItIt was quite heavy, so you will require assistance from another person to move it to its intended location. We have unraveled it, and as less than 24 hours have passed since then, this is its current appearance. Therefore, I will likely wait another 24 hours before placing it on the bed to ensure it has reached its maximum fullness. However, considering the price, we are quite satisfied with the purchase so far, and I will likely provide a follow-up review later.. Sabrina. Atlanta, GA. Sat Sep 12 2026

The Tempur-Pedic® TEMPUR-Adapt® Medium 11" Mattress is part of the TEMPUR-Adapt® series, featuring the latest advancements in the one-of-a-kind, infinitely adaptable, and body-conforming TEMPUR-Material™. It’s designed for exceptional support and pressure relief to reduce aches and pains, so you get your best night’s sleep—every night. The revolutionary TEMPUR-Material™ also delivers renowned motion cancellation to help minimize disruptions caused by movement from partners, pets, or kids.

I love it I sleep very well and I am a side sleeper. Anonymous. Thu Aug 27 2026

The all-new 2023 Perfect Sleeper collection featuring a coil density system, this supportive mattress offers zoned comfort and pressure relief with a lumbar gel support band—with upgrades available with more cooling layers and support.

The only thing that bothered me was the time it took to get here. It took 22 days from purchase to receive the mattress. I have slept on it, a very comfortable balance of plush and firmness. Offers great relief from lower back pain. Comfortable in virtually any position I sleep.(back, side, and occasionally stomach). Traded from a dealt full size bed, this is definitely an upgrade worth the money. Just wait til a sale I got my queen size for 514.. Travis. Indiana. Fri Oct 09 2026

The all-new 2023 Perfect Sleeper collection features a coil density system. This supportive mattress offers zoned comfort and pressure relief with a lumbar gel support band, with upgrades available with more cooling layers and support.

I have had this mattress for over 2 years now and find it very comfortable to sleep on. I would recommend it to anyone for restful night's sleep.. Mike. Rio Rancho, NM. Tue Jul 07 2026

The Serta Five Star Mattress Plush Pillow Top delivers comfort and convenience. Our mattress in a box fully expands quickly so you can sleep on it right away. This quilted innerspring mattress features our individually-wrapped coil system for durability and all-night support. Pillowsoft Aire Foam offers airflow and enhanced cushioning for exceptional comfort. Plus, Serta Pillowsoft Foam provides gentle contouring support. QuiltLoft Memory Foam offers additional comfort at the surface of the 12" model. Looking for lower back care? A gel foam band provides our signature zoned comfort for the lumbar and hips. Cool Twist Gel Foam is designed to promote airflow and heat dissipation. A breathable fabric cover helps you to rest well and wake up refreshed while our antimicrobial technology keeps your mattress fresh and clean from odor-causing bacteria. The Serta Five Star Mattress—from box to bed in seconds.

Exactly what I was looking for. Love it. Anonymous. Fri Aug 21 2026

Meet your ideal night's sleep with this Hybrid Mattress! Our mattress combines cooling gel memory foam with over 930 individually pocketed springs to redefine your sleep experience, offering perfect medium-firm support that cradles your body and maintains natural spinal alignment whether you sleep on your side, back, or stomach. Scientifically engineered for superior motion isolation, breathable comfort, and lasting support, enjoy peaceful nights all through the night. Backed by a 365-day trial and 10-year warranty for your peace of mind.

Great mattress! I have significant back pain due to degenerative disc disease, and since getting this mattress, I’ve noticed a big difference. I’m able to get up and move around much more easily. I would definitely recommend this mattress to anyone looking for better comfort and support!. Dana. NC. Wed Oct 21 2026

The all-new 2023 Perfect Sleeper collection featuring a coil density system, this supportive mattress offers zoned comfort and pressure relief with a lumbar gel support band—with upgrades available with more cooling layers and support.

Really is the perfect sleeper! Comfortable and firm.. Beverly S. Tue Oct 20 2026

Enjoy endless possibilities for restful sleep on this Ultra Luxury firm mattress. You get the best of both worlds with this hybrid innerspring mattress: the pressure relief of cooling gel-infused memory foam, coupled with body contouring pocketed coils and, eco-loft wool layers for superior support. Rest assured that the BCI (Better Cotton Initiative) Cotton cover provides the comforting feel you'll love.

Hemingway is always a reliable mattress. Not our first!. Kristen. Richmond, VA. Mon Aug 04 2025

Weve evolved the Serta iSeries NXG to be the next generation of comfort. Weve built this Medium feel mattress with a series of benefits for the sleep you want. Experience immediate cooling, instant pressure relief and ideal support for a deeper , more restful sleep at a price that makes sense. Featuring high-density memory foam, NXG Memory Foam delivers deep, contouring pressure relief. A cool-to-the-touch fabric oers instant cooling, while Carbon Fiber Memory Foam draws heat away from the body for all-night comfort. The hybrid models feature a 5-zone coil system with alternating firm and plush areas to better support the curves of your back and body.

very comfortable great great for a restful sleep.. Marta S. Thu Oct 01 2026

Featuring our exclusive 5 support zones for improved spinal alignment, 100% naturally-derived* latex foam and an advanced cooling system for premium all-foam comfort. * Disclaimer: True Response Latex foam’s primary ingredient is 100% rubber tree sap, without any fillers or synthetic additives.

Very comfortable yet firm enough to give the support needed for my back. Linda C. Sat Sep 26 2026

The bed that started it all, the Purple Mattress features two inches of breathable GelFlex Grid to cradle pressure points like hips and shoulders while keeping the rest of your body fully aligned. When paired with a dual-layer comfort foam base, the result is a perfectly supported sleep.

Love it! Sleep through the night, not too hot. Super comfy!. Amanda. Whitney, NE. Sun Jul 05 2026

The all-new 2023 Perfect Sleeper collection featuring a coil density system, this supportive mattress offers zoned comfort and pressure relief with a lumbar gel support band—with upgrades available with more cooling layers and support.

10” thick mattresses of good quality are hard to find especially in local stores. Serta came through on this one. Definitely not too soft. May add a topper later. Wanted a 10” to keep the height down since our platform bed is already 16” high and we really don’t care for high beds. And it’s light enough that we can rotate it ourselves.. Anonymous. Thu Aug 20 2026

Designed for elevated comfort and long-lasting performance, this dual foam hybrid mattress combines advanced foam layers with a responsive pocketed spring system to deliver balanced support, pressure relief, and motion isolation. The comfort system features Copper Gel AeroFusion Foam paired with BraceSleeper Comfort PU Foam, contouring to your body while helping regulate temperature for a cooler, more refreshing night’s sleep. For enhanced durability and stability, the mattress is reinforced with a Spring Edge Support Foam system that prevents sagging and maximizes usable sleep space from edge to edge. Wrapped in a soft, breathable knit fabric cover with a fiberglass-free fire-resistant inner cover, this mattress is thoughtfully engineered to prioritize comfort, safety, and peace of mind. Whether you sleep on your back, side, or change positions throughout the night, the medium-firm feel delivers adaptive support designed to suit all sleep styles. Available in 12-inch and 14-inch profiles, this mattress offers tailored comfort options while maintaining the same premium construction and trusted performance.

Very soft and comfortable. Just the right amount of firmness. It arrived very quickly! It pops up very fast and heavy enough to stay in place.. Anonymous. Fri Jul 31 2026

Serta iComfort Memory Foam features zoned support from memory foam layers for contouring pressure-relief and breathability. With alternating levels of firmness, ergonomically design support zones in every Serta® mattress are designed to keep your body aligned as you sleep.

Comfortable mattress. Beautiful surface but very slippery, making it a little tricky to put sheets on it. I am sleeping very well and staying cool. I would like to know what type of sheets you recommend. Thank you.. Gail G. Sat Sep 05 2026

Featuring our exclusive 5 support zones for improved spinal alignment, 100% naturally-derived* latex foam and an advanced cooling system for premium all-foam comfort. * Disclaimer: True Response Latex foam’s primary ingredient is 100% rubber tree sap, without any fillers or synthetic additives.

Amazing!! This is a THICK mattress. So soft yet so supportive! It may be plush top but that doesn’t mean not firm enough. It’s perfect!. Claire. Mon Oct 05 2026

The all-new 2023 Perfect Sleeper collection features a coil density system. This supportive mattress offers zoned comfort and pressure relief with a lumbar gel support band, with upgrades available with more cooling layers and support.

I love it! My hips aren’t achy in the morning. For a side sleeper it’s awesome. Anonymous. Sun Oct 04 2026

This cooling gel memory foam mattress features a layered design that brings balanced support to your home. The contouring foam adapts to your body's weight and movement, relieving key pressure points for a restful night. Gel infusions work alongside a breathable fabric cover to pull excess heat away from the surface. Motion-isolating layers help minimize disruptions, keeping sleep uninterrupted even if your partner shifts. Plus, it arrives compressed in a box for simple setup.

The photos were before it puffed up to its full size! I absolutely think for the price this mattress is great. I like a firmer mattress but also I know that over time it will eventually get less firm like the brand new bed it is and it will still be comfortable! This is my second bed from Wayfair and always glad to purchase through them!. Anonymous. Thu Oct 08 2026

Bedstory mattress is assembled in the US and compliant with the certification of the US. People can purchase our mattresses confidently. Our mattresses are not plush or firm but are in the medium comfort level, which is soft and supportive. When you lie down, our mattress will provide support to each part of your body from the head to toe, especially the waist, no matter what gesture you are in, your waist can get good support to get pressure relief. Besides, our mattresses have a motion isolation design giving people sweet, deep sleep without being disturbed by other motions on the mattress.

Comfortable mattress no regrets buying it I was a bit skeptical before opening but after it was a complete customer satisfaction I will definitely buy it again. Olawale. Sat Oct 17 2026

Serta Perfect Sleeper Medium Hybrid 13.5 delivers perfect sleep, night after night. Featuring our Q4 Support System, 920 density 4-in-1 coils that are perfectly linked for even weight distribution and long-lasting support with BestEdge Foam Encasement for stability. Our unique 5 Zoned Comfort features alternating firm and plush areas and is designed to hug the curves of your back and body for perfect support. EverCool Supreme Memory Foam provides a dynamic combination of cooling and pressure-relieving premium memory foam. Layers of memory foam infused with cooling technology enhance airflow, heat dissipation, and contouring comfort. Stay cool and comfortable with breathable wool, plus CoolFeel Plus Fabric engineered with cooling performance technologies. The Serta Perfect Sleeper with Q4 Support System helps relieve aches and back pain with consistent comfort, reduced pressure, and long-lasting support at a great valuefor perfect sleep, night after night.

[This review was collected as part of a promotion.] As you can see, the room hasn't been updated in 10 + years including our mattress.. this has been an actual game changer!!!! It feels really nice, medium feel, i dont feel like i sink in but it also doesnt feel like a board. It almost curves to my body and I have been getting such a great night's sleep with this mattress!!! I am a plus size person and between me and my husband its well over 550+ pounds of weight but it has been working out for us. We've been using this mattress for almost 60 days and it feels the same as the first day we got it! Comfortable, doesnt sink for our weight and so far I love laying in bed without getting some type of soreness from sleeping "wrong". Its definitely the mattress you use that causes this.. in love with our new mattress!!!!. Ashleyr. Mon Oct 12 2026

The BeautySleep 12” Medium Hybrid Mattress In A Box features a quilted surface, Original Beautyrest Pocketed Coil Technology, and quality foams for long-lasting support, pressure relief, and airflow. Durably assembled in the USA within trusted facilities and offered at a value, this mattress offers lasting comfort—delivered to your door.

Perfect balance of support and comfort. Easy delivery and setup... can't wait to be so much more comfortable for our nights slumber. Jessica. St. Charles, IL. Tue Jun 09 2026

This medium hybrid mattress balances contouring comfort with responsive support for a well-rounded sleep experience. A combination of cushioning foam layers and supportive coils creates a sleep surface that adapts to the body's shape while maintaining stability throughout the night. The medium feel offers a blend of softness and support, making it suitable for a variety of sleep preferences and positions. A quilted top adds an extra layer of comfort, while the breathable construction encourages airflow for a more comfortable rest. Plus, the hybrid design combines pressure-relieving comfort with dependable support.

Big box, comfy mattress. Be sure to leave time for expansion after you take it out of plastic. At least 24-48 hours. Have used for a week now and no complaints. Kimber. Rapid City, SD. Tue Oct 20 2026

Experience the best of both worlds with the reimagined Beautyrest Black® Hybrid mattress - the latest advancement from the creators of the original Hybrid mattress. Rest undisturbed as Triple-Stranded Pocketed Coil® Technology delivers our most advanced, individualized support and motion separation, isolating movement between sleepers while conforming to support their unique shapes. Plus, sleep comfortably as a cool-to-the-touch Sleep Climate™ Surface promotes cooling for a luxurious rest. Our patented ContourFit® design allows you to nestle directly into Beautyrest® Gel Memory Foam at the mattress surface, enhancing your comfort and pressure relief no matter your sleeping position. The best of individualized support, motion separation, and pressure-relieving comfort await in a mattress designed to excel in all. Invest in your rest, and discover your best with the reimagined Beautyrest Black® Hybrid.

Great mattress! I have chronic back pain due to scoliosis. I initially purchased a dreamcloud firm mattress and it felt too soft. Swapped it for this one and I couldn’t be happier! It has minimal bounce and doesn’t sink when you sit on the edges. Definitely worth the price and would highly recommend to anyone looking for a firm mattress.. Anonymous. Sat Aug 08 2026

This medium innerspring mattress lays a supportive foundation for a restful night's sleep in any sleeping area. Its tight top design helps maintain proper edge support, keeping fitted sheets neatly in place. Inside, high-density quilting foam and padding contour to your body's natural shape for tailored comfort. Below the cushioning, a pocket coil system absorbs movement to minimize motion transfer and relieve pressure points. The breathable cover enhances overall airflow throughout the night to keep your sleep environment fresh. Plus, it arrives conveniently compressed and boxed for seamless setup.

The full size mattress is very comfortable and firm for my grand daughter and her friends. Jenna. TX. Tue Oct 06 2026