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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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Zinus Night Therapy Medium 12” Memory Foam Mattress with Antimicrobial Cooling Cover

Instructions

<p><em>Designed for refreshing, restorative sleep, the Night Therapy 12" Memory Foam Mattress with Antimicrobial Cooling Cover delivers premium comfort that adapts to you. Crafted with layers of green tea-infused memory foam and advanced pressure-relief technology, this mattress is all about keeping you cool, clean, and supported night after night.</em></p> <h3>Sleep Easy with Our 10-Year Warranty</h3> <p>Your comfort is covered. Every Zinus mattress comes with a 10-year limited warranty for long-term peace of mind.</p> <h3>Instant Cooling and Antimicrobial Protection</h3> <p>The luxuriously soft cover is woven with cooling technology that instantly cools on contact to help regulate your temperature while you sleep. Plus, a protective antimicrobial finish offers a fresher, more hygienic sleep surface.</p> <h3>Pressure-Relieving Green Tea Foam</h3> <p>A top layer of Green Tea Memory Foam cradles your joints for soothing relief, while the patented 7-zone pressure relief system beneath targets key areas like the hips, shoulders, and knees to help reduce soreness in any sleep position.</p> <h3>Balanced Medium Comfort</h3> <p>With a medium feel, this mattress offers the ideal blend of cushioning and support perfect for sleepers who want to feel hugged without sinking too deeply.</p> <h3>Frequently Asked Questions</h3> <ul>  <li><strong>What bases are compatible with this mattress? Does it need a Boxspring?</strong></li> </ul> <p>This mattress pairs with any box spring, platform bed, or Zinus SmartBase®.</p> <ul>  <li><strong>How is this mattress delivered to me? How do I unbox this mattress?</strong></li> </ul> <p>This mattress-in-a-box arrives compressed and expands in 24 – 72 hours.</p> <ul>  <li><strong>What is this weight limit for this mattress or mattress set?</strong></li> </ul> <p>Twin/Twin XL: Up to 250 lbs; Other sizes: Up to 500lbs</p>

Bed Size

Brand

<ul>  <li>Available in Twin, Twin XL, Full, Queen, King, and Cal-King</li>  <li>Covered by Sam's Club Satisfaction Guarantee and Covered by Zinus' 10-year limited warranty</li>  <li>Medium-firm feel delivers customized support ideal for all sleeping positions</li>  <li>12” Memory foam mattress with instant cool-to-touch cover and antimicrobial finish</li>  <li>Premium green tea infused into every foam layer ensure cleaner, fresher sleep</li>  <li>A 7-zone pressure relief system targets key areas to help relieve aches and pains</li> </ul>

Specifications

<ul>
<li>Available in Twin, Twin XL, Full, Queen, King, and Cal-King</li>
<li>Covered by Sam's Club Satisfaction Guarantee and Covered by Zinus' 10-year limited warranty</li>
<li>Medium-firm feel delivers customized support ideal for all sleeping positions</li>
<li>12” Memory foam mattress with instant cool-to-touch cover and antimicrobial finish</li>
<li>Premium green tea infused into every foam layer ensure cleaner, fresher sleep</li>
<li>A 7-zone pressure relief system targets key areas to help relieve aches and pains</li>
</ul>

Size

Twin

Full

Queen

King

California King

Bought this based on a prior purchase for a twin sized bed. This one is deeper and very comfortable. It’s on an adjustable frame and works well. I sleep really good with it in the 0 gravity position. It’s also very good for a side sleeper in the flat position.

Great mattress

Love this mattress! It was easy. It is comfortable. Itnis perfect!

Great mattress for guest bedroom

I had been shopping for a new mattress for a while, watching sales and reading reviews, when I came across this relative unknown ZINUS Nigh Therapy mattress at Sam's website.  While there were only 50 some reviews, to my surprise there were none below 4 stars, so I decided to give it a try as it was also on sale for $100 off with free delivery.  The box arrived a few days later, and I was surprised at how heavy it was.  It weighs about the same as a regular mattress but it's all condensed into a box that is about the size of 2 King pillows atop each other.  Anyway, I carefully opened it up and set it on my old box spring to allow it to unroll and "inflate".  By that night, it was exactly as it looked online, just under 12 inches, but not by much, and by the way, no chemical smell--AT ALL!  It took a night or two to really get used to the support which my spouse says feels very firm.  I think it feels more like a hotel quality bed that forms to fit, allows movement without bouncing your partner out of bed and stays cool to the touch.  After a week, I have to say that I am very impressed and sleeping through the night for the first time in a long time!  Highly recommended, and if you can get it on sale that is a definite plus!

Very pleasantly surprised!

My shoulders no longer hurt in the morning.  Much less tossing and turning and my arms are not falling asleep.  I slept on a Zimus mattress at an airbnb and ordered while I was still there.  That one was firm on the edges.  This one is super mushy and not good for sitting on the edge of to put on shoes.  But I don't hurt so I am okay with sitting in a chair for shoes.

I am pleased

zinus.com

This is our second Zinus mattress. We bought the same exact one three years ago and were very happy with it. Just bought another for our second home and are disappointed in what feels like a decrease in quality. The edges of the mattress sink so you even feel like you’re going to roll off the bed while sleeping. This new mattress is a lot softer than our other, which feels more supportive and firmer. And it’s not a true queen 60” wide but instead 58”, which is quite annoying as our mattress cover and sheets keep sliding around. Can’t help but think they decreased quality to cut spending by cutting size and also foam density. Too bad. We are disappointed and won’t be purchasing another one.

Quality diminished

I was sent a defective bed. We have been waiting for the bed to expand properly for about two weeks, now, but it has still not fully expanded. Very disappointed. I just requested a refund. I am glad Sam refunded my money.

Defective

I had a 13 in Zinus memory foam that has served me well for about 6 years. Decided it was time for a new mattress and went with their ultra cooling 12 in (thickest available now?). I like the feel overall and the cooling of it but the edge support is non-existent. Sitting on the side you feel like you are sliding into the floor, same with sleeping if you share a bed and sleep near the edge. Will probably be returning it for these reason.

Lacking in edge support

Delivery was quick. We immediately opened the mattress as it states not to leave it in the packaging over 72hrs. 
After 24hrs there still was a valley in the middle of the mattress. The instructions stated that it could take up to 48hrs to reform. After 48hrs there still was a valley. I contacted Zinus. Zinus told me it could take up to 7 days. Then Zinus told me that any other concerns need to be conveyed to Sam’s Club. After 7 days there still was a bit of a valley but we decided to give it a try. Some of the reviews did state that sleeping on the mattress and working it a bit did help it reform. 
17days later I checked and the valley is still there. This seems like it could be easily avoided if the mattress was just rolled up and NOT folded and then rolled (I have received memory foam mattresses in the past and they have been rolled up. Not folded in half and then rolled). I should have mentioned that the valley is where the fold was. 
Otherwise I slept great. The mattress is very firm. 
My wife did not sleep well and woke up sore. She prefers a softer mattress. 
Thank goodness for Sam’s Club customer service understanding and setting up the pickup return and refund. I have yet for the mattress to be picked up and the cash refunded. That was setup today and I was told it would take a week.

Never reformed. Terrible customer service

Has not come to full depth and now I’m having problems with Sam’s Club processing a refund.

Flat as a pancake

Not sure how it has such good reviews. This is a very hard and uncomfortable mattress. The middle of the mattress is creased and it never fully inflated. Biggest regret and plan on replacing it soon. Invest on a better mattress is all I can say unless you like sleeping on concrete.

Hard as a Rock!

Zinus Night Therapy Medium 12” Memory Foam Mattress with Antimicrobial Cooling Cover 

Zinus Night Therapy Medium 12” Memory Foam Mattress with Antimicrobial Cooling Cover

Highlights

GhostBed InfraRest 12" Medium Foam Mattress with Far Infrared Technology