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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 141-150 of 249 reviews
Mar 22, 2026
Reviewer name: Alexander M
5 out of 5 stars
5 out of 5 stars review

Excellent firm mattress

Very supportive

Review from Serta
Helpful?1L02F9H4SZMK15235570026
Oct 5, 2024
Reviewer name: beautyforumbyangela
5 out of 5 stars
5 out of 5 stars review

The perfect sleep night after night

[This review was collected as part of a promotion.] The Serta Perfect Sleeper Quilted Hybrid mattress will give you a perfect sleep night after night. It is made to be durable, breathable, comfortable and perfect for hot or cold sleepers.

Review from Serta
Helpful?1L02F9H4SZMK15235570026
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?1L02F9H4SZMK15235570026
Nov 15, 2024
Reviewer name: Rose M
5 out of 5 stars
5 out of 5 stars review

Truly the perfect sleeper!

Love the firmness of this mattress. I’m a stomach sleeper and this provides me with the perfect amount of support for a great nights sleep. Also great for my husband who is a back sleeper. No more aches and pains upon wakening.

Review from Serta
Helpful?1L02F9H4SZMK15235570026
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?1L02F9H4SZMK15235570026
Jan 28, 2025
Reviewer name: redqueen193_9060
5 out of 5 stars
5 out of 5 stars review

Comfy Cozy

[This review was collected as part of a promotion.] This is a great mattress. It's tall, so if you have a tall frame you might want to get a new one. I love it. It's comfortable. I do think it could use a little more support but I love it.

Review from Serta
Helpful?1L02F9H4SZMK15235570026
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?1L02F9H4SZMK15235570026
Jun 15, 2025
Reviewer name: Adam C
4 out of 5 stars
4 out of 5 stars review

Great mattress

This mattress starts out firm at first but after a few nights sleep is very comfortable. I normally sleep on my back and it’s very supportive of them mid to low back and cradled your body!

Review from Serta
Helpful?1L02F9H4SZMK15235570026
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?1L02F9H4SZMK15235570026
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?1L02F9H4SZMK15235570026