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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 31-40 of 264 reviews
Feb 25, 2026
Reviewer name: Allan C
5 out of 5 stars
5 out of 5 stars review

Great support and comfort for us side sleepers

So far our decision to replace our old Serta Icomfort Applause II was a good one. Very supportive, and provides a better night's sleep.

Review from Serta
Helpful?5QG9W3640AJR15258655880
Apr 2, 2026
Reviewer name: Jill M
5 out of 5 stars
5 out of 5 stars review

Best Mattress Ever!

Firm, but not too firm, felt supported and blissful from the very first night...best sleep I've had in months!

Review from Serta
Helpful?5QG9W3640AJR15258655880
May 16, 2026
Reviewer name: Cheryl P
5 out of 5 stars
5 out of 5 stars review

Commmmfortable

I have no complaints it's super comfortable. I never thought i'd like a mattress other than my king koil.

Review from Serta
Helpful?5QG9W3640AJR15258655880
Jan 1, 2025
Reviewer name: CaseyAZ
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Supportive mattresse

Have been sleeping on the mattress for about 3 weeks. Me and my partner like different firmnesses. I am a side sleepersnd they are side and back sleeper. We got the medium firm with a pillow top and it comfortable for both of us. JE

Review from Serta
Helpful?5QG9W3640AJR15258655880
Dec 21, 2025
Reviewer name: Jasmin M
5 out of 5 stars
5 out of 5 stars review

Serta Perfect Sleeper

So far so good. I do like it better than my previous mattress which was more of a soft pillow top firm plush mattress. It was too soft and my back would hurt a lot. So I'm hoping this firm sleeper will do wonders but so far it feels great

Review from Serta
Helpful?5QG9W3640AJR15258655880
Nov 1, 2025
Reviewer name: Kathleen M
5 out of 5 stars
5 out of 5 stars review

New firm mattress

My rest test told me I needed more lumbar support with my arthritis. Been 12 years since we had a new mattress. It was time. Very tall though so have deep pocket sheets on hand. Glad I have bed steps.

Review from Serta
Helpful?5QG9W3640AJR15258655880
Oct 31, 2025
Reviewer name: Valerie M
5 out of 5 stars
5 out of 5 stars review

Best mattress ever!

Comfy, supportive, firm edges. I returned a Casper mattress and got this Perfect Sleeper X. Back pain gone after first night and I sleep through the entire night now!

Review from Serta
Helpful?5QG9W3640AJR15258655880
Jun 28, 2026
Reviewer name: Danielle J
5 out of 5 stars
5 out of 5 stars review

Raymour

Bought mattress in Watertown Ny from Raymour and it feels amazing, firm just like we like it

Review from Serta
Helpful?5QG9W3640AJR15258655880
Jul 24, 2026
Reviewer name: Tom M
5 out of 5 stars
5 out of 5 stars review

Knox plush

So far it has been great, had less than a week.

Review from Serta
Helpful?5QG9W3640AJR15258655880
Jul 10, 2026
Reviewer name: Noel E
5 out of 5 stars
5 out of 5 stars review

Comfy

Love the support and the foam is caressing!

Review from Serta
Helpful?5QG9W3640AJR15258655880