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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
Aug 26, 2025
Kent S
5 out of 5 stars
5 out of 5 stars review

New mattress we love it

Very nice and supportive

Review from Serta
Helpful?1L02F9H4SZMK15235568801
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?1L02F9H4SZMK15235568801
Sep 3, 2025
Phyllis W
5 out of 5 stars
5 out of 5 stars review

Excellent and importantly so comfortable

Firm and comfortable

Review from Serta
Helpful?1L02F9H4SZMK15235568801
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?1L02F9H4SZMK15235568801
Aug 11, 2025
Patricia B
3 out of 5 stars
3 out of 5 stars review

So so

Seems to stay indented where I sleep. Didn’t think I would have that with such an expensive mattress. But seems to be comfortable.

Review from Serta
Helpful?1L02F9H4SZMK15235568801
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
Helpful?1L02F9H4SZMK15235568801
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
Helpful?1L02F9H4SZMK15235568801
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?1L02F9H4SZMK15235568801
Jun 21, 2025
Erica N
5 out of 5 stars
5 out of 5 stars review

Perfect Sleep

Not too firm, not too soft, just right! In love with my new mattress. Highly recommend. It makes a difference!

Review from Serta
Helpful?1L02F9H4SZMK15235568801
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?1L02F9H4SZMK15235568801