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¹Offer subject to credit approval. During the offer period, new accounts that qualify will earn a $50 statement credit instead of a $30 statement credit that you may see otherwise advertised. To qualify, you must (i) apply and be approved for a Sam’s Club credit card account between June 24, 2026—July 7, 2026 and (ii) use your new account to make Sam’s Club purchases totaling $30 or more (excluding cash advances, gift card sales, alcohol, tobacco and pharmacy purchases) within 30 days of date of account opening. When you open an account online or with your mobile device, purchases cannot be made at in-club registers until the physical card is received. Your physical card should arrive in 7–10 business days from date of account opening. A $50 credit will post to the account within 90 days after the qualifying purchases are made. Offer is valid for newly opened accounts only and each account is eligible for only one $50 offer, in lieu of, and not in addition to, any advertised $30 offer.

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Serta Perfect Sleeper X Knox Hybrid Mattress

Instructions

Still not sure what you need? Check out our <a href="https://www.samsclub.com/content/mattress-buying-guide?mid=cat_banner_210325_mattresses_guide&amp;xid=cat-_shelf_0_1" target="_self">Mattress Buying Guide</a> to find the perfect mattress for you. <h3>Experience the Serta Quilted Perfect Sleeper X Collection</h3> Get the sleep you deserve with the Serta Quilted Perfect Sleeper X Collection. This premium mattress features a 5 ZoneResponse Design, combining Perfect Conform Memory Foam with 5-zoned coils for full-body alignment. The mattress is designed with cooling technology and graphite-infused memory foam to redistribute heat away from your body, ensuring a cool and comfortable sleep throughout the night. The quilted top adds a classic feel and an extra layer of plush foam for that luxurious touch. Experience xtraordinary sleep with the Serta Quilted Perfect Sleeper X. <h3>100 Night In-Home Trial</h3> We understand that it takes time to adjust to a new mattress. That's why we offer Sam’s Club members up to 100 nights to try this mattress risk-free. The trial period starts on the day of delivery. If you aren't 100% satisfied with your purchase, you can return your mattress or set for a full refund. For any concerns regarding potential defects, please reach out to our Serta Simmons Customer Service team to discuss options under the 10-year limited warranty. <h3>Special Gift Card Offer</h3> With your purchase of this Serta Perfect Sleeper X Hybrid mattress/mattress set, you’ll receive a $300 Sam’s Club e-Gift Card for use on future purchases. The e-Gift Card will be sent by Walmart to the email address on the order 4-6 weeks after delivery. This offer is solely provided by Serta and is not the responsibility of Sam’s Club. <h3>Serta - Always Comfortable</h3> The Serta mattress is designed with your comfort in mind. All Serta mattresses undergo rigorous performance and durability testing to ensure they remain as comfortable on the 1000th night as they were on the first. Serta also tests individual components, guaranteeing quality and durability down to the last stitch. Shop smart, sleep comfortably. <h3>White Glove Delivery+</h3> White Glove Delivery+ includes setup of the item(s) in your chosen room, assembly of a universal bed frame (if no tools are required), and removal &amp; disposal of an old mattress or set. The delivery agent can refuse pickup of any stained mattress and/or foundation for safety reasons. For any concerns or questions regarding your order, please contact the Serta Sam’s Club team at (888) 802-2948. <h3>Frequently Asked Questions</h3> <ul> <li>How is this mattress delivered to me? How to unbox this mattress?</li> </ul> This Mattress is delivered to you via our delivery Partners RXO and which includes White Glove delivery plus Haul Away <ul> <li>What is this weight limit for this mattress or mattress set?</li> </ul> 1000lbs <ul> <li>What bases are compatible with this mattress? Does it need a Boxspring?</li> </ul> Boost the height of your bed by setting your mattress against a foundation. The Serta Perfect Sleeper X Hybrid mattress is compatible with platform foundations and solid surface bed frames. <ul> <li>What type of sleeper is the mattress best suited for?</li> </ul> Plush - Great for side sleepers for extra comfort at the shoulders, hips and lower back. Firm - Ideal for stomach and back sleepers with extra support." <ul> <li>Does this mattress have cooling properties?</li> </ul> Yes, CoolFeel™ System - Cooling technology keeps you comfortable throughout the night. <ul> <li>Does this include pocketed coils?</li> </ul> Yes, with our 5 ZoneResponse Design™ coils provide full-body spinal alignment in any sleep position. <ul> <li>Is this a Mattress in a Box</li> </ul> No, this is a traditional mattress. <ul> <li>What is the thickness of the mattress?</li> </ul> This mattress has a height of 13.75" for the Plush and 13.5" for the Firm. <ul> <li>For any concerns or questions regarding your order please contact the Serta Simmons Sam’s Club team at (888) 802-2948.</li> </ul>

Bed Size

Brand

Free White Glove Delivery included for Plus Members. Set up and mattress haul away available for all. Enjoy a 100-night in-home Trial backed by Serta, plus receive a $300 Sam’s Club eGift Card to use toward future purchases. <ul> <li>5 ZoneResponse Design combines coils and contouring memory foam for full body spinal alignment</li> <li>Available as a Plush or Firm</li> <li>Compatible with most bed frames, box springs, platforms and adjustable foundations</li> <li>Available in Twin XL, Full, Queen, King, and Cal King</li> </ul>

Specifications

Instant Savings

Free White Glove Delivery included for Plus Members. Set up and mattress haul away available for all.
Enjoy a 100-night in-home Trial backed by Serta, plus receive a $300 Sam’s Club eGift Card to use toward future purchases.
<ul>
<li>5 ZoneResponse Design combines coils and contouring memory foam for full body spinal alignment</li>
<li>Available as a Plush or Firm</li>
<li>Compatible with most bed frames, box springs, platforms and adjustable foundations</li>
<li>Available in Twin XL, Full, Queen, King, and Cal King</li>
</ul>

Amount

+5.5" Boxspring

+9" Boxspring

Mattress Only

Size

Twin-XL

Full

Queen

King

Cal-King

Style

Firm

Plush

We absolutely love our Serta mattress! At first, it felt a bit stiff, but after a few days of breaking it in, it became incredibly comfortable. We made the switch from our previous pillow top options because they kept breaking down too quickly, and we're so pleased with our decision. This mattress provides great support and feels much more durable. Overall, we couldn’t be happier with our purchase!

A Perfect Balance of Comfort and Support!

Serta

My first night sleeping on the mattress and it was night and day compared to my old mattress. I did not wake up in pain, specifically, low back pain. The difference after one night of sleep is profound. I pray this continues and does not change after a year. It seems that’s when mattresses sleep quality change.

So far so good!

Have been sleeping on the mattress for about 3 weeks. Me and my partner like different firmnesses. I am a side sleepersnd they are side and back sleeper. We got the medium firm with a pillow top and it comfortable for both of us. JE

Supportive mattresse

I waited to write my review. We've own our mattresses maybe a mo now and it's broken in to my liking perhaps not all the way though. Off hand it was a lil firmer than i would like. I got the plush and the other is the firm both in twin xl's. Ours is paired with an adjustable base in zero clearance status and king size bed. I have moments where i can't wait to get in bed. I thought with my ailments it would help a lil more but mine are mechanical. No matter what i choose the ailments will still be there. When i can sleep it's comfortable. I first tried this in the mattress store along with the kendall model which is just flat and more contouring because of the memory foam. However that model made it harder for me to get up although i loved everything else about it. I got a great deal with the sale price of $799 for each one plus $300 back in gc form which i received appox a wk or so after delivery. I knew what i was getting and didn't go in blind when purchasing. Although i use it with my base there are no dips or anything forming in the mattress. I wish it longevity of 12  yrs as my king koil mattress. It's worth the spend.

Get it

When the mattress arrived it was just great, no weird smell and looked exactly like the showroom model. It's very firm which helped my herniated disc. I work hard and I need to recharge at night, not toss and turn. It's perfect for me and I'm glad I chose this one. The design and color are also very attractive to the eye. One of the best features of my purchase was the mattress protector with cooling technology. It's in there! I slept well and could notice the difference in temperature immediately. I highly recommend.

Best Night Sleep Period.

i bought what was described as a plush mattress and I would not describe it as plush. i would call it medium firm to firm. the mattress is of high quality, imo, just the description does not match firmness of the mattress. i woke up to body aches, being a side sleeper. after giving the mattress a month, i finally added a 2 inch memory foam topper. now, i sleep comfortably.

plush is medium firm to firm.

My 4 star is more for great price for mattress. I've only had 3 nights of sleep with my new mattress and not able to give a true performance review for the comfort of the mattress. What I can give, I have not awaken during the night or next morning with total body soreness.

Sleepless Nights

We replaced a failing mattress with this Serta Hybrid... it nicely firm and supportive, but not overly hard.  It sits a little higher up than previous mattresses (maybe due to the matching foundation?) but my tall husband appreciates the extra height.

Nice firm mattress

2 1/2 months in and my husband and I still haven’t adjusted to this mattress. It does not have a cooling effect whatsoever, in fact it holds heat. We both wake up with back pain. Now we’re stuck with it and stuck with poor quality sleep. If you’re looking for a new mattress, don’t buy this one.

Horrible

Four months in and this is not good. Much like another reviewer, there’s now a sink hole and I can’t wait to get out of bed because I have to, to stop the aches. Four months, $1000.00 in and I’m stuck with waking up to aches from a mattress. This is really bad, Serta.

Sink hole four months in

Serta Perfect Sleeper X Knox Hybrid Mattress

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Highlights

American Bedding Premium Collection 11” Hybrid Mattress