Skip to Main Content
Sam's Club
Sam's Club
All Departments
All Services
Customer reviews for Serta Perfect Sleeper X Knox Hybrid Mattress for
Serta Perfect Sleeper X Knox Hybrid Mattress
4.7 out of 5 stars
stars
249 ratings249 reviews
  1. 5 stars79% (197)
  2. 4 stars15% (38)
  3. 3 stars3% (7)
  4. 2 stars1% (2)
  5. 1 star2% (5)

Member photos

  • +1 image
Sort by |
Showing 31-40 of 249 reviews
Nov 1, 2025
Kathleen M
5 out of 5 stars
5 out of 5 stars review

New firm mattress

My rest test told me I needed more lumbar support with my arthritis. Been 12 years since we had a new mattress. It was time. Very tall though so have deep pocket sheets on hand. Glad I have bed steps.

Review from Serta
Helpful?1L02F9H4SZMK15251060596
Sep 18, 2025
Ronald W
5 out of 5 stars
5 out of 5 stars review

Straight No Chaser, Comfort Sleep!!

This mattress is, “da’ bomb!” Folks, if you think I’m fibbin’, get one! It seems to re-align sleeping posture, I miss work, on purpose to stay on this mattress! I removed the bedding to get model number for warranty- 10 years limited.

Review from Serta
Helpful?1L02F9H4SZMK15251060596
May 19, 2026
Anne R
5 out of 5 stars
5 out of 5 stars review

New Comfy Mattress

Love it! It is so comforting and relaxing…with lots of support!

Review from Serta
Helpful?1L02F9H4SZMK15251060596
Apr 27, 2026
Arturo R
5 out of 5 stars
5 out of 5 stars review

comfortable

excellent mattress very comfortable firm and soft

Review from Serta
Helpful?1L02F9H4SZMK15251060596
May 3, 2026
Karen R
4 out of 5 stars
4 out of 5 stars review

New Mattress After 14 Years

Comfortable and Affordable

Review from Serta
Helpful?1L02F9H4SZMK15251060596
May 14, 2026
Subhashkumar P
4 out of 5 stars
4 out of 5 stars review

Really great I enjoyed it

Great of restful sleep. Nice o can sleep on relax

Review from Serta
Helpful?1L02F9H4SZMK15251060596
Apr 16, 2026
Joseph B
5 out of 5 stars
5 out of 5 stars review

First Night Restful

I typically take days to adjust to a new mattress. The first night was very relaxing.

Review from Serta
Helpful?1L02F9H4SZMK15251060596
May 21, 2026
Kari C
5 out of 5 stars
5 out of 5 stars review

Comfy

Mattress is comfy and supportive. If you like a firm mattress - this is the one for you.

Review from Serta
Helpful?1L02F9H4SZMK15251060596
Apr 19, 2026
Robert F
4 out of 5 stars
4 out of 5 stars review

Not light

So far seems cool im older and had to have help to move it

Review from Serta
Helpful?1L02F9H4SZMK15251060596
Apr 14, 2026
Bill H
5 out of 5 stars
5 out of 5 stars review

Knox firm

A few days in. So far so good. Needed firm mattress. Waking up without pain

Review from Serta
Helpful?1L02F9H4SZMK15251060596