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SURGEON GENERAL'S WARNING: Smoking Causes Lung Cancer, Heart Disease, Emphysema, And May Complicate Pregnancy.

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Limited time! Get a $50 statement credit when you open an account & use it to make $30 in eligible Sam’s Club purchases within 30 days.¹

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 Morning Slumber Medium Mattress Set

Instructions

<h3>Comfortable Sleep with Serta Classic Morning Slumber Medium</h3> The Serta Morning Slumber Medium Mattress Set is a medium-feel innerspring mattress designed for back, side, and combination sleepers who want balanced pressure relief, cooling comfort, and motion-reducing coil support. <h3>Supportive 800-Density Coil System</h3> Enjoy steady sleep with the 800-density coil system, which provides cradling support while reducing motion transfer. You'll experience fewer disruptions during the night, allowing you to wake up bright, refreshed, and ready for the day. <h3>Key Features</h3> <ul> <li>Breathable Cover – Soft and airy to help keep you cool and comfortable.</li> <li>800-Density Coil System – Provides support and minimizes motion transfer.</li> <li>Plush PillowSoft Aire foam – Perfect balance of cushioning and medium feel support for all types of sleepers.</li> </ul> <h3>100 Night In-Home Trial</h3> Adjusting to a new mattress takes time, which is why Sam’s Club members can enjoy a 100-night risk-free trial starting from the day of delivery. If you're not completely satisfied, you can return the mattress or set for a full refund. For warranty concerns, contact Beauty Sleep Customer Service at (888) 802-2948. <h3>White Glove Delivery Service</h3> With White Glove Delivery, your mattress will be set up in the room of your choice, and old mattresses can be removed and disposed of (exclusions apply). Delivery agents ensure a seamless experience, and you’ll receive notifications to schedule your delivery. For questions, contact the Serta Simmons Sam’s Club team at (888) 802-2948. <h3>Frequently Asked Questions</h3> What type of mattress is the Serta Morning Slumber Medium Mattress Set? The Serta Morning Slumber Medium Mattress Set is a medium-feel innerspring mattress designed to provide balanced comfort and support. It combines supportive coils with pressure-relieving comfort foams for a comfortable sleep experience. Is the Serta Morning Slumber mattress good for side sleepers? Yes. The medium comfort level and cushioning foam layers make this mattress a good option for side sleepers, back sleepers, and combination sleepers looking for a balance of softness and support. Does this mattress help reduce motion transfer? Yes. The mattress features an 800-density coil support system designed to help reduce motion transfer while supporting proper spinal alignment and overall sleep comfort. Does the mattress sleep cool? The Serta Morning Slumber Medium Mattress includes breathable comfort materials and cooling foam layers designed to promote airflow and help regulate temperature throughout the night. What comfort level is this mattress? This mattress has a medium comfort feel, offering a balance between plush cushioning and supportive firmness for a wide range of sleep preferences. What sizes are available? The Serta Morning Slumber Medium Mattress Set is available in multiple sizes, including Twin, Full, Queen, King, and California King, depending on availability. How tall is the mattress? The mattress measures approximately 11.5 inches in height. Does this mattress include a foundation? Yes. This product is sold as a mattress set and includes both the mattress and matching foundation. Can this mattress be used with an adjustable base? No. This mattress set is designed for use with standard bed frames and traditional foundation support systems and is not compatible with adjustable bases. What type of support system does the mattress use? The mattress features an 800-density coil support system designed to provide responsive support, durability, and reduced motion transfer. Is White Glove Delivery included? Yes. White Glove Delivery is included with this mattress set, providing convenient in-home delivery and setup. Does the mattress come with a sleep trial? Yes. The mattress includes a 120-night in-home trial, allowing eligible members to try the mattress at home. Is there a warranty included? Yes. The Serta Morning Slumber Medium Mattress Set is backed by a manufacturer warranty for added peace of mind. Are the foams CertiPUR-US certified? Yes. The mattress includes CertiPUR-US certified foams made without ozone depleters and tested for durability, emissions, and performance standards. Is this mattress good for guest rooms or primary bedrooms? Yes. The medium feel and balanced support make this mattress suitable for both guest bedrooms and everyday primary bedroom use. How is the mattress delivered? The mattress set is delivered directly to your home through White Glove Delivery service, which includes setup in your room of choice. What makes this mattress comfortable? The mattress combines cushioning comfort foams with a supportive innerspring system to create a balance of pressure relief, support, and overall comfort. Is this mattress designed for long-term durability? Yes. The support coil system and durable comfort materials are designed to help maintain comfort and support over time.

Bed Size

Brand

Free White Glove Delivery is included for Plus Members; setup and mattress haul-away is available for non-Members <ul> <li>Available in: Full, Queen, King, or Cal King with 5.5" or 9" Box Spring</li> <li>Covered by Serta's 100 Night In-Home Trial</li> <li>Features CertiPUR-US certified foams</li> <li>Suitable for side, back, stomach, and combination sleepers</li> <li>Mattress comes as a set and cannot be used on an adjustable base</li> </ul>

Specifications

Free White Glove Delivery is included for Plus Members; setup and mattress haul-away is available for non-Members
<ul>
<li>Available in: Full, Queen, King, or Cal King with 5.5" or 9" Box Spring</li>
<li>Covered by Serta's 100 Night In-Home Trial</li>
<li>Features CertiPUR-US certified foams</li>
<li>Suitable for side, back, stomach, and combination sleepers</li>
<li>Mattress comes as a set and cannot be used on an adjustable base</li>
</ul>

Size

Full

Queen

King

California King

Style

+5" Boxspring

+9" Boxspring

Oh Em Geeeeeeee. Wasn't even really thinking of buying a new bed. Then I just passed by it in store and it was too good a price to not get! I have been sleeping in it for a week now and it is hands down the best sleep I have had in so long! It's more firm and doesn't let my body sink, it cradles all the curves.

New bed

Kids room

the morning Slumber medium mattress appears to be of good quality, although it's listed as a medium and I believe it leans it self towards the firmer Edge of medium. I am very pleased with this purchase. I tried a different model mattress several months ago and after sleeping in that one for about a week and a half it was already sinking in the middle and of course I returned that one. yes I would buy this morning slumber mattress again. I hope this review helps you in your quest for a great night's sleep without breaking the bank. kind regards!

I am so glad i purchased this mattress set! it is so comfortable! I've slept better the last few nights than I have in years. I stay cooler with this mattress too, which is awesome! i also bought two queen size mattress sets. My kids are in love with their sets as well. we havent had thrm long enough to know about longevity but I'm praying they last a long time.

👍👍👍

Upgraded to a Serta morning slumber and couldn't be happier. Delivery was smooth, the mattress expanded perfectly with no weird chemical smell, and it is incredibly comfortable. It's the perfect mix of soft padding on top and firm support underneath.

Serta Matress

Serta

Good matress for the price.

The queen size is much smaller than the queen size I had before.  There are approximately 2- inch spaces on each side between my bed rails. My previous queen size fit more snugly between the rails with only about a 1/4-1/2 inch gap between the mattress sides and rails.

Disappointef

I purchased this mattress on May 22, 2026. I didn't realize Sam's uses a third‑party vendor for delivery, so when I started receiving text messages that looked like spam—just random numbers with no clear identification—I ignored them. Once I realized they were legitimate, I scheduled a delivery for June 23.
On June 26, I contacted the third‑party delivery company for an update and was told my order had been canceled. They stated Sam's Club canceled it and directed me to call Sam's for more information.
I called Sam's and was told they needed to research the issue and would call me back the next day. Four days passed with no response. When I called again, I was transferred to someone who identified himself as “Steve” from the escalation department in the Philippines. When I told him I planned to leave a negative review, he immediately gave me a different name and said he did not have to provide an ID number or any other identifying information.
I explained to him that I had already contacted the third‑party vendor and they told me to call Sam's, and now he was telling me to contact the same department that had already directed me back to Sam's. I told him I was not going to “chase my tail” going back and forth between two departments giving me the same answer with no explanation.
My order was canceled, my money refunded, and I still have no explanation as to why. I have company arriving for the Fourth of July and no mattress. Save yourself the time and frustration and purchase a mattress from another retailer.

Order Canceled With No Explanation

I returned this mattress set after sleeping on it for 5 nights. I am 120 lbs. The bed was too firm. It had a top layer of about 2 inches of soft foam on top of something quite firm. It also felt like it was already sagging. But everyone is different. I'm just glad of Sam's Club return policy. But I will never buy a mattress from here again unless it's there's a great deal for kids' beds.

Serta Morning Slumber Medium mattress set — 11.5" Pillow-Soft Aire foam, sizes Full to Cal King, $399, free White Glove delivery for Plus members.

Serta Morning Slumber Medium Mattress Set

Freight shipping

Highlights

GhostBed InfraRest 12" Medium Foam Mattress and Adjustable Base Set