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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 121-130 of 264 reviews
Oct 18, 2025
Reviewer name: Jeff L
5 out of 5 stars
5 out of 5 stars review

Very Comfortable

No more aches and pains when I wake up in the morning.

Review from Serta
Helpful?5QG9W3640AJR15241712141
Feb 7, 2026
Reviewer name: James R
4 out of 5 stars
4 out of 5 stars review

Firm

Looking forward to sleeping on a flat surface.

Review from Serta
Helpful?5QG9W3640AJR15241712141
Dec 5, 2025
Reviewer name: Susan A
5 out of 5 stars
5 out of 5 stars review

Truly the Perfect Sleeper!

Perfect amount of firmness and comfort; definitely helped with healing my total hip replacement.

Review from Serta
Helpful?5QG9W3640AJR15241712141
Jan 30, 2026
Reviewer name: Teresa B
4 out of 5 stars
4 out of 5 stars review

Relaxing

Comfortable and supportive.

Review from Serta
Helpful?5QG9W3640AJR15241712141
Jan 24, 2026
Reviewer name: Riley C
5 out of 5 stars
5 out of 5 stars review

Perfect Balance

Perfect balance of plush with firm that fits both of us!

Review from Serta
Helpful?5QG9W3640AJR15241712141
Dec 5, 2025
Reviewer name: Mayra V
5 out of 5 stars
5 out of 5 stars review

The best for best price.

Great strong and soft mattress for rest and sleepful.

Review from Serta
Helpful?5QG9W3640AJR15241712141
Dec 8, 2025
Reviewer name: Kendra B
4 out of 5 stars
4 out of 5 stars review

Getting to know each other

First few nights was a little stiff. But now settling in and super comfortable.

Review from Serta
Helpful?5QG9W3640AJR15241712141
Jan 20, 2026
Reviewer name: Steven S
5 out of 5 stars
5 out of 5 stars review

Great feeling

Comfortable and supportive

Review from Serta
Helpful?5QG9W3640AJR15241712141
Nov 22, 2025
Reviewer name: Ronda S
5 out of 5 stars
5 out of 5 stars review

Firm and comfortable

Love new mattress. Side sleeper and it is not too firm to cause discomfort. Highly recommend.

Review from Serta
Helpful?5QG9W3640AJR15241712141
Jan 23, 2026
Reviewer name: Paul W
5 out of 5 stars
5 out of 5 stars review

Adjustable bed

It feels so good to wake up refreshed!

Review from Serta
Helpful?5QG9W3640AJR15241712141