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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 221-230 of 264 reviews
Jun 6, 2025
Reviewer name: Edna B
5 out of 5 stars
5 out of 5 stars review

Extremely comfortable

Comforting for a very relaxing sleep.

Review from Serta
Helpful?5QG9W3640AJR15258655098
Jun 25, 2025
Reviewer name: Laurie david K
4 out of 5 stars
4 out of 5 stars review

Very firm and love the zero G

Very firm and love the zero G

Review from Serta
Helpful?5QG9W3640AJR15258655098
Jan 9, 2025
Reviewer name: Joanna W
5 out of 5 stars
5 out of 5 stars review

New Serta Mattress

Comfy and supportive - looking forward to many restful sleep nights.

Review from Serta
Helpful?5QG9W3640AJR15258655098
Jul 14, 2025
Reviewer name: Crystal B
4 out of 5 stars
4 out of 5 stars review

Love it

I like firm beds. This is just what I needed. Comfortable.

Review from Serta
Helpful?5QG9W3640AJR15258655098
Jun 13, 2025
Reviewer name: Analuci M
5 out of 5 stars
5 out of 5 stars review

Nice and firm mattress

Looks really solid and durable. My son will love it!

Review from Serta
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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?5QG9W3640AJR15258655098
Sep 21, 2025
Reviewer name: Katherine H
5 out of 5 stars
5 out of 5 stars review

Excellent

Supportive yet still feel I can sleep on my side comfortably!

Review from Serta
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Mar 1, 2025
Reviewer name: Kevin C
5 out of 5 stars
5 out of 5 stars review

Love our new bed!

Woke up with my back feeling better than it has in years!

Review from Serta
Helpful?5QG9W3640AJR15258655098
Nov 15, 2024
Reviewer name: Nicholas S
5 out of 5 stars
5 out of 5 stars review

Big bed, extra supportive

Large bed, supportive mattress, taking a bit of time getting used to it. Too soon to say.

Review from Serta
Helpful?5QG9W3640AJR15258655098
Nov 22, 2024
Reviewer name: Andrew M
5 out of 5 stars
5 out of 5 stars review

After only 1 night , it's hard to think of a title

Only had it 1 night and so far so good.

Review from Serta
Helpful?5QG9W3640AJR15258655098