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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
264 ratings264 reviews
  1. 5 stars79% (208)
  2. 4 stars15% (40)
  3. 3 stars3% (9)
  4. 2 stars1% (2)
  5. 1 star2% (5)
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Showing 151-160 of 264 reviews
Dec 13, 2025
Reviewer name: Fernando F
5 out of 5 stars
5 out of 5 stars review

Exelent for my back

good Support for my back

Review from Serta
Helpful?5QG9W3640AJR15232504743
Feb 3, 2026
Reviewer name: James L
5 out of 5 stars
5 out of 5 stars review

Serta Firm

Very supportive

Review from Serta
Helpful?5QG9W3640AJR15232504743
Oct 25, 2025
Reviewer name: Gary E
5 out of 5 stars
5 out of 5 stars review

Comfy

No more back aches

Review from Serta
Helpful?5QG9W3640AJR15232504743
Jun 21, 2025
Reviewer name: Erica N
5 out of 5 stars
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?5QG9W3640AJR15232504743
Dec 14, 2024
Reviewer name: Scott M
5 out of 5 stars
5 out of 5 stars review

So far so good

Have had one night only so far and we are very pleased. Slept very well! Just the right level of firmness for us.

Review from Serta
Helpful?5QG9W3640AJR15232504743
Feb 1, 2025
Reviewer name: Patricia Z
5 out of 5 stars
5 out of 5 stars review

Comfy, supportive, great quality

Our new Serta mattress and box springs are very comfortable and supportive (for my bad back). This mattress is very well made.

Review from Serta
Helpful?5QG9W3640AJR15232504743
Apr 19, 2025
Reviewer name: Jeremy H
5 out of 5 stars
5 out of 5 stars review

"It's good, I like it!"

These are the words of the wisest, smartest, and most beautiful person in the world: My Wife. Passes the wife test, passes my test.

Review from Serta
Helpful?5QG9W3640AJR15232504743
Mar 9, 2025
Reviewer name: Patricia N
5 out of 5 stars
5 out of 5 stars review

SATISFIED

Perfect Sleeper. We're able to sleep at night. Very satisfied with with our back problems. Problem satisfied, very firm comfortable.❤️👌

Review from Serta
Helpful?5QG9W3640AJR15232504743
Mar 27, 2025
Reviewer name: Sarah U
1 out of 5 stars
1 out of 5 stars review

Impressions permanent in less than two weeks

The mattress already has divots or impressions from where we sleep in less than two weeks. We are not overweight.

Review from Serta
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Nov 3, 2024
Reviewer name: Sonja G
5 out of 5 stars
5 out of 5 stars review

grnlight

This mattress is firm and supportive exact comfort for me with a touch of softness like a pillow top. I just love it.

Review from Serta
Helpful?5QG9W3640AJR15232504743