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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 11-20 of 249 reviews
Apr 19, 2025
Reviewer name: CA2025
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

GREAT MATRESS !!

Perfect firmness for both my wife and my needs. Slept like I didn't have kids waking me up every few hours again.

Review from Serta
Helpful?1L02F9H4SZMK15215424793
Jul 15, 2026
Reviewer name: Emily F
5 out of 5 stars
5 out of 5 stars review

Name of bed

Ours is the Perfect Sleeper X Knox Quilted Hybrid 13.5 Quilted wasn’t part of the drop down choice- not sure it matters. ?? We love it!

Review from Serta
Helpful?1L02F9H4SZMK15215424793
Apr 7, 2025
Reviewer name: Dan24
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Very comfortable.

I’m very happy with my new mattress. I’ve been using it for a few weeks now, and my body feels more rusted and less pain when waking up.

Review from Serta
Helpful?1L02F9H4SZMK15215424793
Nov 23, 2024
Reviewer name: Holli
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Great mattress

This mattress is amazing and a life saver. I did expect it to be more plush but it's still very comfortable. I sleep great now!

Review from Serta
Helpful?1L02F9H4SZMK15215424793
Nov 19, 2024
Reviewer name: Seventies young
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

We bought this matress about a month ago and have loved it. We are older and it has been very comfortable.

Review from Serta
Helpful?1L02F9H4SZMK15215424793
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?1L02F9H4SZMK15215424793
Nov 3, 2024
Reviewer name: mikeinaples
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Bouncy firm;)

I traded a firm which was very soft- I’d guess medium at most, but the extra firm is perfect for those who prefer a firm bed.

Review from Serta
Helpful?1L02F9H4SZMK15215424793
Apr 18, 2026
Reviewer name: Xenia D
5 out of 5 stars
5 out of 5 stars review

Just right

I was unsure about ordering a comforter online that I didn't get to test first. Luckily it worked out providing the support and softness that I wanted.

Review from Serta
Helpful?1L02F9H4SZMK15215424793
Jun 17, 2026
Reviewer name: Amy H
2 out of 5 stars
2 out of 5 stars review

Hurts my back

Something hurts mid back. Trying to sleep a little lower so the hips are in one of the softer zones but not happy so far.

Review from Serta
Helpful?1L02F9H4SZMK15215424793
Mar 6, 2026
Reviewer name: Denise H
1 out of 5 stars
1 out of 5 stars review

Not great so far

I ordered a plush but it feels very firm to me so far. I haven’t had it very long so I am going to keep trying for a while longer and hope it gets better. Back pain is worse with this mattress so far.

Review from Serta
Helpful?1L02F9H4SZMK15215424793