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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 161-170 of 249 reviews
Sep 22, 2025
Cindy D
5 out of 5 stars
5 out of 5 stars review

Sleep like a baby

So firm! I love it!

Review from Serta
Helpful?1L02F9H4SZMK15235570026
Sep 2, 2025
James G
5 out of 5 stars
5 out of 5 stars review

I bought your mattress because I liked it.

Firm and supportive!!

Review from Serta
Helpful?1L02F9H4SZMK15235570026
Sep 18, 2025
Nina T
4 out of 5 stars
4 out of 5 stars review

New Mattress

So far it’s comfy

Review from Serta
Helpful?1L02F9H4SZMK15235570026
Sep 7, 2025
Wanda R
5 out of 5 stars
5 out of 5 stars review

Sleep deep

Great night's sleep!

Review from Serta
Helpful?1L02F9H4SZMK15235570026
Apr 19, 2025
Jeremy H
5 out of 5 stars
5 out of 5 stars review

"It's good, I like it!"

These are the words of the wisest, smartest, and most beautiful person in the world: My Wife. Passes the wife test, passes my test.

Review from Serta
Helpful?1L02F9H4SZMK15235570026
Dec 14, 2024
Scott M
5 out of 5 stars
5 out of 5 stars review

So far so good

Have had one night only so far and we are very pleased. Slept very well! Just the right level of firmness for us.

Review from Serta
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Apr 29, 2025
Deborah C
5 out of 5 stars
5 out of 5 stars review

Firm and comfortable

The mattress is very firm, which I at first was unhappy about. However now, after several months, I am very glad I chose it.

Review from Serta
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Feb 1, 2025
Patricia Z
5 out of 5 stars
5 out of 5 stars review

Comfy, supportive, great quality

Our new Serta mattress and box springs are very comfortable and supportive (for my bad back). This mattress is very well made.

Review from Serta
Helpful?1L02F9H4SZMK15235570026
Mar 22, 2025
Keith L
5 out of 5 stars
5 out of 5 stars review

Perfect!

I was looking for more support something not too hard and not too soft and I settled for the plush and it’s perfect!

Review from Serta
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Mar 9, 2025
Patricia N
5 out of 5 stars
5 out of 5 stars review

SATISFIED

Perfect Sleeper. We're able to sleep at night. Very satisfied with with our back problems. Problem satisfied, very firm comfortable.❤️👌

Review from Serta
Helpful?1L02F9H4SZMK15235570026