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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
249 ratings249 reviews
  1. 5 stars79% (197)
  2. 4 stars15% (38)
  3. 3 stars3% (7)
  4. 2 stars1% (2)
  5. 1 star2% (5)

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Showing 101-110 of 249 reviews
Oct 13, 2024
abhilashp
5 out of 5 stars
5 out of 5 stars review

Perfect Hybrid Mattress

[This review was collected as part of a promotion.] This Serta mattress has a beautiful design pattern. It provides proper support no matter if I sleep on my back or on sides. The mattress actually has firmness that I was expecting, other mattresses I’ve used in the past deforms memory foam overtime with weight. Hybrid technology indeed brings best of spring and memory foam mattress together.

Review from Serta
Helpful?1L02F9H4SZMK15241712141
Sep 9, 2024
bbyjayy
5 out of 5 stars
5 out of 5 stars review

Definitely LOVE!!!

[This review was collected as part of a promotion.] At first I was skeptical to receive a mattress to review however I am truly blown away by the quality and comfortability! I went from total memory foam to this and it has truly made a different in the support on my back! I can also tell the different with their cooling technology! I feel blessed and extremely grateful for this opportunity!

Review from Serta
Helpful?1L02F9H4SZMK15241712141
Aug 23, 2024
jenn68
5 out of 5 stars
5 out of 5 stars review

Super comfy

[This review was collected as part of a promotion.] I couldn’t be happier with it! From the moment I unboxed it, I could tell it was a high-quality mattress. The hybrid design combines the best of both worlds with a comfortable foam layer and supportive innerspring coils, making it incredibly cozy yet supportive. The medium-firm feel is perfect – it strikes just the right balance between softness and support, making it ideal for a restful night’s sleep.

Review from Serta
Helpful?1L02F9H4SZMK15241712141
Oct 13, 2025
Bertha S
5 out of 5 stars
5 out of 5 stars review

Serta

I like a firm mattress and this fits my needs

Review from Serta
Helpful?1L02F9H4SZMK15241712141
Oct 30, 2025
Michael M
5 out of 5 stars
5 out of 5 stars review

Wonderful!!!!!!!!!!

No more sagging mattress, very supportive.

Review from Serta
Helpful?1L02F9H4SZMK15241712141
Sep 18, 2025
Betsy C
3 out of 5 stars
3 out of 5 stars review

Firm but comfy

It’s a really nice mattress we just have to get use to the firmness!

Review from Serta
Helpful?1L02F9H4SZMK15241712141
Nov 2, 2025
Linda S
5 out of 5 stars
5 out of 5 stars review

Great

Thanks for the quality product and 10 year quality assurances.

Review from Serta
Helpful?1L02F9H4SZMK15241712141
Sep 30, 2025
Vincent W
4 out of 5 stars
4 out of 5 stars review

So far so good!

First week down. Mattress is very supportive.

Review from Serta
Helpful?1L02F9H4SZMK15241712141
Oct 3, 2025
Alin K
4 out of 5 stars
4 out of 5 stars review

So far so good!

I've only slept on my new mattress five nights and I really like it already.

Review from Serta
Helpful?1L02F9H4SZMK15241712141
Sep 14, 2025
Sherry S
5 out of 5 stars
5 out of 5 stars review

Best sleep ever!

Very comfortable and supportive! Woke up after the first nights sleep with no up pain!!

Review from Serta
Helpful?1L02F9H4SZMK15241712141