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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 141-150 of 264 reviews
Nov 3, 2024
Reviewer name: Connie D
5 out of 5 stars
5 out of 5 stars review

Finally; no pain

Was having severe back; hip and shoulder pain. Slept on another bed on vacation and realized I needed to get a new mattress!! It’s amazing how much better I feel!!

Review from Serta
Helpful?5QG9W3640AJR15258655091
Feb 21, 2025
Reviewer name: Susan D
5 out of 5 stars
5 out of 5 stars review

Sleep heaven

This mattress is so comfortable! It's firm but not too firm. I added my own pillow top and it feels like sleeping on a cloud. I'm a back sleeper and feel like this mattress has improved my sleep quality.

Review from Serta
Helpful?5QG9W3640AJR15258655091
Jul 11, 2025
Reviewer name: Carol L
5 out of 5 stars
5 out of 5 stars review

Love it

Once I lay down to sleep, I fall to sleep immediately and sleep the entire night. It is very comfortable and no aches or pains. I am totally happy and satisfied with it

Review from Serta
Helpful?5QG9W3640AJR15258655091
Sep 18, 2025
Reviewer name: Ronald W
5 out of 5 stars
5 out of 5 stars review

Straight No Chaser, Comfort Sleep!!

This mattress is, “da’ bomb!” Folks, if you think I’m fibbin’, get one! It seems to re-align sleeping posture, I miss work, on purpose to stay on this mattress! I removed the bedding to get model number for warranty- 10 years limited.

Review from Serta
Helpful?5QG9W3640AJR15258655091
Sep 12, 2024
Reviewer name: leaht59
5 out of 5 stars
5 out of 5 stars review

Comfortable, supportive mattress.

[This review was collected as part of a promotion.] This hybrid mattress is perfect for our guest room. It is comfortable, durable, and breathable. It is a firm mattress, but it doesn't feel too hard, and the support it provides is great.

Review from Serta
Helpful?5QG9W3640AJR15258655091
Oct 21, 2024
Reviewer name: ksr_official95
4 out of 5 stars
4 out of 5 stars review

High quality good performance

[This review was collected as part of a promotion.] This Matress has been really good with my back. It's comfortable and you get good sleep at night. The hybrid technology keeps my body cool and it's nice to feel firmness along with comfort.

Review from Serta
Helpful?5QG9W3640AJR15258655091
Aug 24, 2024
Reviewer name: laurenv129
4 out of 5 stars
4 out of 5 stars review

Beautiful and Comfortable

[This review was collected as part of a promotion.] This durable mattress provides superior comfort and support while keeping maintenance at a minimum. The breathability is unmatched by the competition. Would recommend.

Review from Serta
Helpful?5QG9W3640AJR15258655091
Oct 26, 2024
Reviewer name: elgal
5 out of 5 stars
5 out of 5 stars review

Great quality!

[This review was collected as part of a promotion.] This mattress is super comfortable and gives us all the support we need, have seen a difference waking up with less body ache and strained back muscles.

Review from Serta
Helpful?5QG9W3640AJR15258655091
Jul 4, 2025
Reviewer name: Cheryl M
5 out of 5 stars
5 out of 5 stars review

Best Sleep I’ve Ever Had

Very firm but comfortably supports my spine after two surgeries. I go right to sleep without tossing and turning like I did with my previous mattress.

Review from Serta
Helpful?5QG9W3640AJR15258655091
Aug 28, 2025
Reviewer name: BETHS
5 out of 5 stars
5 out of 5 stars review

Perfect blend of support and comfort.

I'm a side sleeper and was looking for a firm mattress that would not make the pressure points in my shoulder and hips hurt. This hybrid mattress has been perfect for me!

Review from Ashley Furniture
Helpful?5QG9W3640AJR15258655091