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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 191-200 of 264 reviews
Mar 9, 2025
Reviewer name: Raymond b N
5 out of 5 stars
5 out of 5 stars review

Great mattress

Very supportive mattress. A restful night sleep.

Review from Serta
Helpful?5QG9W3640AJR15231903459
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?5QG9W3640AJR15231903459
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?5QG9W3640AJR15231903459
Feb 21, 2025
Reviewer name: Janice G
5 out of 5 stars
5 out of 5 stars review

New Mattress

Comfortable and supportive mattress

Review from Serta
Helpful?5QG9W3640AJR15231903459
Sep 18, 2025
Reviewer name: John P
5 out of 5 stars
5 out of 5 stars review

John P like looks

Just got today, I’ll know better tomorrow.

Review from Serta
Helpful?5QG9W3640AJR15231903459
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?5QG9W3640AJR15231903459
Feb 24, 2025
Reviewer name: Deborah S
5 out of 5 stars
5 out of 5 stars review

Serta King Knox

Enjoying this new mattress!

Review from Serta
Helpful?5QG9W3640AJR15231903459
May 20, 2025
Reviewer name: Douglas E
4 out of 5 stars
4 out of 5 stars review

Great sleep

So glad we bought this one. Sleep is so much better.

Review from Serta
Helpful?5QG9W3640AJR15231903459
Mar 3, 2025
Reviewer name: Lavettra C
4 out of 5 stars
4 out of 5 stars review

P

Comfy and supportive mattress; it sleeps very well. It’s also very heavy.

Review from Serta
Helpful?5QG9W3640AJR15231903459
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?5QG9W3640AJR15231903459