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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 21-30 of 264 reviews
Aug 5, 2026
Reviewer name: Stanley L
5 out of 5 stars
5 out of 5 stars review

Restful Sleep

comfortable sleeping........remote is a bonus .........still finding our perfect setting for head and leg adjustment

Review from Serta
Helpful?5QG9W3640AJR15241662250
Aug 31, 2026
Reviewer name: Sandra B
3 out of 5 stars
3 out of 5 stars review

Unsure

Much firmer than the model.

Review from Serta
Helpful?5QG9W3640AJR15241662250
Aug 30, 2026
Reviewer name: Carol L
5 out of 5 stars
5 out of 5 stars review

Great mattress

Great support,comfortable

Review from Serta
Helpful?5QG9W3640AJR15241662250
Sep 6, 2026
Reviewer name: Ken R
5 out of 5 stars
5 out of 5 stars review

my perfect mattress

best night sleep in a long time excellent

Review from Serta
Helpful?5QG9W3640AJR15241662250
Aug 19, 2026
Reviewer name: Cheryl I
5 out of 5 stars
5 out of 5 stars review

Bed is firm and comfortable

Bed is firm and comfortable. Too firm for my husband but right for me

Review from Serta
Helpful?5QG9W3640AJR15241662250
Aug 29, 2026
Reviewer name: Linda R
5 out of 5 stars
5 out of 5 stars review

Comfy Plus

My first night sleep on was wonderful.

Review from Serta
Helpful?5QG9W3640AJR15241662250
Aug 12, 2026
Reviewer name: John H
5 out of 5 stars
5 out of 5 stars review

Good night sleep

Only two nights in. Sleeping like a baby!

Review from Serta
Helpful?5QG9W3640AJR15241662250
Sep 3, 2026
Reviewer name: Tom F
4 out of 5 stars
4 out of 5 stars review

Feels great!

Nice, soft mattress. Great for my achy back!

Review from Serta
Helpful?5QG9W3640AJR15241662250
Mar 21, 2026
Reviewer name: Cari T
4 out of 5 stars
4 out of 5 stars review

Perfect Sleeper

This mattress will be “perfect” as soon as my back adjusts to the firmness. I do like the comfiness of the top layer and the mattress is supportive.

Review from Serta
Helpful?5QG9W3640AJR15241662250
May 29, 2026
Reviewer name: Daetrell L
5 out of 5 stars
5 out of 5 stars review

New mattress.

Mattress is very comfortable and price worthy. I do heavy construction for a living so my body is saying thank you.

Review from Serta
Helpful?5QG9W3640AJR15241662250