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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 161-170 of 264 reviews
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?5QG9W3640AJR15231853527
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
Helpful?5QG9W3640AJR15231853527
Mar 22, 2025
Reviewer name: Keith L
5 out of 5 stars
5 out of 5 stars review

Perfect!

I was looking for more support something not too hard and not too soft and I settled for the plush and it’s perfect!

Review from Serta
Helpful?5QG9W3640AJR15231853527
May 28, 2025
Reviewer name: Mary T
5 out of 5 stars
5 out of 5 stars review

Excellent mattress

I love the Serta Knox firm mattress! Even though it is firm, it is comfortable and I can sleep without any issues.

Review from Serta
Helpful?5QG9W3640AJR15231853527
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?5QG9W3640AJR15231853527
Sep 19, 2025
Reviewer name: Debbe H
5 out of 5 stars
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?5QG9W3640AJR15231853527
Oct 13, 2025
Reviewer name: Barbara E
3 out of 5 stars
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?5QG9W3640AJR15231853527
Nov 23, 2024
Reviewer name: Lynn P
5 out of 5 stars
5 out of 5 stars review

Mattress comfort

Excellent so far and comfy.

Review from Serta
Helpful?5QG9W3640AJR15231853527
Nov 19, 2024
Reviewer name: Amaury josue A
5 out of 5 stars
5 out of 5 stars review

After 1 night - good sleep

Supportive in my back, comfortable when sleeping in the side, sturdy material.

Review from Serta
Helpful?5QG9W3640AJR15231853527
Mar 22, 2025
Reviewer name: Margaret M
5 out of 5 stars
5 out of 5 stars review

Restful sleep

Our mattress was 20 years old. This mattress is so comfy. Not too soft not too hard. Jyst right.

Review from Serta
Helpful?5QG9W3640AJR15231853527