Skip to Main Content
Sam's Club
Sam's Club
Customer reviews for Serta Perfect Sleeper X Knox Hybrid Mattress for
Serta Perfect Sleeper X Knox Hybrid Mattress
4.7 out of 5 stars
stars237 ratings237 reviews
  1. 5 stars79% (188)
  2. 4 stars16% (37)
  3. 3 stars3% (7)
  4. 2 stars0% (1)
  5. 1 star2% (4)

Member photos

Sort by |
Showing 81-90 of 237 reviews
Nov 8, 2025
Charlene S
5 out of 5 stars review

Bush & Gilles - Single XL

Seems to be a great mattress

Review from Serta
Helpful?7JIQY3DE2VJ715235570013
Dec 5, 2025
Mayra V
5 out of 5 stars review

The best for best price.

Great strong and soft mattress for rest and sleepful.

Review from Serta
Helpful?7JIQY3DE2VJ715235570013
May 8, 2026
Olsi G
5 out of 5 stars review

Nice

Nice mattress

Review from Serta
Helpful?7JIQY3DE2VJ715235570013
Oct 13, 2025
Barbara E
3 out of 5 stars review

Adjustable bed

I like the bed but unhappy that I cannot use my head board and it is difficult to keep the top sheet secured.

Review from Serta
Helpful?7JIQY3DE2VJ715235570013
Jul 17, 2025
Kendra S
4 out of 5 stars review

Sister bed

My sister seems to be comfortable and sleeps well through the night. No more saggy mattress she wakes up with a smile on her face.

Review from Serta
Helpful?7JIQY3DE2VJ715235570013
Sep 19, 2025
Debbe H
5 out of 5 stars review

Saved my back

I have a lot of health issues with my back and haven’t been able to find a mattress that is comfortable until now. Thank you so much.

Review from Serta
Helpful?7JIQY3DE2VJ715235570013
Aug 11, 2025
Patricia B
3 out of 5 stars review

So so

Seems to stay indented where I sleep. Didn’t think I would have that with such an expensive mattress. But seems to be comfortable.

Review from Serta
Helpful?7JIQY3DE2VJ715235570013
Jun 21, 2025
Erica N
5 out of 5 stars review

Perfect Sleep

Not too firm, not too soft, just right! In love with my new mattress. Highly recommend. It makes a difference!

Review from Serta
Helpful?7JIQY3DE2VJ715235570013
Mar 16, 2026
Lisa A
4 out of 5 stars review

Firm

Firm and supportive

Review from Serta
Helpful?7JIQY3DE2VJ715235570013
Mar 22, 2026
Alexander M
5 out of 5 stars review

Excellent firm mattress

Very supportive

Review from Serta
Helpful?7JIQY3DE2VJ715235570013