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

Most helpful positive review

14 customers found this helpful
5 out of 5 stars
5 out of 5 stars review
Verified Purchase

Very pleasantly surprised!

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...
JeepGuy66
Versus

Most helpful negative review

13 customers found this helpful
1 out of 5 stars
1 out of 5 stars review
Verified Purchase

Hard as a Rock!

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.
Ivonne
164 reviews
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  • 2 out of 5 stars
    2 out of 5 stars review
    5/19/2026

    Good Cooling But Way Too Firm

    I’ve had my ultra cooling mattress for about a month now. I’ve paired it with linen sheets for extra breathability and feel like it does a great job at not getting too hot while I sleep. But so far that’s been where the positives have ended. The mattress is very very firm. I thought it might take a little break in period but a month and some change in and it’s still brutally firm. Im a side/slight stomach sleeper and I’ve noticed that since getting the mattress I wake up feeling tired still and I have had pain in my back that definitely wasn’t there before. I’ve ordered a topper for it to hopefully bring some relief for my sleep but overall I’ve been pretty let down by the mattress. I can’t say I’d recommend it and unfortunately wil...
    GWinn
    Originally posted on
    zinus.com
  • 3 out of 5 stars
    3 out of 5 stars review
    Verified Purchase
    5/29/2026

    Memory Foam - Ultra Cooling

    Disappointed with the side support of the matress.
    S Herr
    Originally posted on
    zinus.com
  • 5 out of 5 stars
    5 out of 5 stars review
    7/27/2023

    Getting a good night’s sleep finally !

    Getting a good restful sleep with this queen size mattress. The first night, I was ready to kick it to the curb, but after the second night, I was okay . It is different from any mattress that we have owned in the past. You really sink down in this one. I am pretty much a side sleeper and have no trouble sleeping that way and with this mattress I can also sleep flat on my back. Can’t say it’s any cooler than our previous mattress but it was also a “cooler “ type mattress. Bottom line is that I am glad I bought it. Give it a few nights before passing judgement.
    LHFLA
  • 1 out of 5 stars
    1 out of 5 stars review
    2/2/2026

    Way too Plush, my back and neck hurts

    I should have returned my mattress before 100 nights trial. I found it plush in the beginning but it is getting more plush to the point where I would fall off the bed if I sit on the edges. My neck and back hurt so bad and I started physiotherapy. I am in search of a new firm mattress now that would support my back. It was the most expensive mattress with high expectations when I first purchased it. It was waste of money and damage to my body.
    Amy Oh
    Originally posted on
    zinus.com
  • 5 out of 5 stars
    5 out of 5 stars review
    1/28/2023

    Absolutely amazing

    The mattress we replaced was a16 yr old pillow top. I refused to get another pillow top, so we looked for a good out of the box mattress. It was better than I expected. The comfort zones I believe are accurate and I no longer wake up hurting. The mattress gives under you to the shape your body needs. Sooo comfortable!!
    FLgirl
  • 1 out of 5 stars
    1 out of 5 stars review
    5/5/2023

    absolutely horrible

    This bed is like sleeping on the floor. This bed is hard to rotate on. If you have issues with your arms falling asleep and you have to rotate, this isn’t the bed for you! It is NOT good for side sleepers, hurts my back and I wake up feeling like I’ve slept on a floor all night. I am returning this.
    Jo
    Zinus
    Hello, Thank you for your review and we apologize that you are experiencing issues with your purchase. Please give Sam's Clu...
  • 5 out of 5 stars
    5 out of 5 stars review
    4/9/2026

    The final solution!

    This bed is the perfect balance of soft and supportive. I started with the original green tea mattress and it is incredibly comfortable but not supportive enough for me. For reference, I currently have three bulging discs and a herniated disc. I am able to sleep all night and never get woken up by back pain. The cooling is nice. It's not too much. Shipping was fast, price was right, no odors, excellent product.
    Sam Youknow
    Originally posted on
    zinus.com
  • 1 out of 5 stars
    1 out of 5 stars review
    Verified Purchase
    12/3/2023

    Flat as a pancake

    Has not come to full depth and now I’m having problems with Sam’s Club processing a refund.
    C Host
  • 5 out of 5 stars
    5 out of 5 stars review
    Verified Purchase
    2/12/2026

    Great Mattresss

    Took a few days for the body to adjust, but it is a great mattress.
    Ericp
    Originally posted on
    zinus.com
  • 5 out of 5 stars
    5 out of 5 stars review
    Verified Purchase
    11/26/2022

    Great mattress for guest bedroom

    Love this mattress! It was easy. It is comfortable. Itnis perfect!
    Angela
  • 5 out of 5 stars
    5 out of 5 stars review
    Verified Purchase
    5/3/2026

    Great alternative to spring mattress

    Great mattress. Easy to open and filled out quickly. We are pleased with the purchase.
    Kasi
    Originally posted on
    zinus.com
  • 1 out of 5 stars
    1 out of 5 stars review
    Verified Purchase
    11/19/2023

    Problem with item

    Mattress in a box never puffed up to 12”. Seems like some kind of defect. Returned for tefund
    KR
  • 5 out of 5 stars
    5 out of 5 stars review
    Verified Purchase
    1/29/2023

    Recommended

    Very comfortable, right between soft and firm.
    Oldcarnut43
  • 5 out of 5 stars
    5 out of 5 stars review
    Verified Purchase
    11/25/2022

    Absolutely amazing buy worth the money!

    Needed a new mattress and I found the right one now I don’t wake up with no back pain I sleep like a baby👍🏼
    Sandra Carsballo
  • 2 out of 5 stars
    2 out of 5 stars review
    12/6/2023

    Defective

    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.
    LA
  • 5 out of 5 stars
    5 out of 5 stars review
    Verified Purchase
    10/1/2024

    Great Comfort.

    Recommended by a family member so I took a chance. I am sleeping better than I have in years. I have tried most of the major brands and spent thousands. This is the most comfortable for me.
    Frank O
  • 5 out of 5 stars
    5 out of 5 stars review
    Verified Purchase
    9/10/2025

    The best bed I have ever slept in

    I had a purple mattress for 10 years and i began having awful muscle strains and pain so heard about this bed so I bought it and it is the best bed I have ever owned. No more back pain and my husband says he no longer has his knee pain. We are learning in or middle age the importance of a good mattress and i promise if you are on the edge with this one...dont be..You will thank me for the referral.
    Kristine F
    Originally posted on
    zinus.com
  • 3 out of 5 stars
    3 out of 5 stars review
    Verified Purchase
    9/26/2025

    Not that great.

    Not that great. I was expecting more. I feel like it folds when I’m in one side.
    Originally posted on
    zinus.com
  • 5 out of 5 stars
    5 out of 5 stars review
    Verified Purchase
    10/16/2025

    Ultra Cooling Green Tea Mattress King Size Hybrid

    Mattress has stayed very cool throughout the night and my back has felt the best it has in years.
    Ryan Nolan
    Originally posted on
    zinus.com
  • 1 out of 5 stars
    1 out of 5 stars review
    4/27/2026

    Too soft

    After using another Zinus mattress I am very frustrated with this one. It is too squishy. I do not like it!!!!
    Tila
    Originally posted on
    zinus.com