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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 181-190 of 249 reviews
May 5, 2025
Aracelee S
5 out of 5 stars
5 out of 5 stars review

Amazing mattress!

Comfy and supportive, everything my back needs! Worth every penny!

Review from Serta
Helpful?1L02F9H4SZMK15183522499
Nov 23, 2024
Lynn P
5 out of 5 stars
5 out of 5 stars review

Mattress comfort

Excellent so far and comfy.

Review from Serta
Helpful?1L02F9H4SZMK15183522499
Jul 6, 2025
Deborah T
5 out of 5 stars
5 out of 5 stars review

Serra Mattress

Perfect depth and comfortable

Review from Serta
Helpful?1L02F9H4SZMK15183522499
Nov 15, 2024
Nicholas S
5 out of 5 stars
5 out of 5 stars review

Big bed, extra supportive

Large bed, supportive mattress, taking a bit of time getting used to it. Too soon to say.

Review from Serta
Helpful?1L02F9H4SZMK15183522499
Jun 25, 2025
Laurie david K
4 out of 5 stars
4 out of 5 stars review

Very firm and love the zero G

Very firm and love the zero G

Review from Serta
Helpful?1L02F9H4SZMK15183522499
Jan 14, 2025
Sam M
5 out of 5 stars
5 out of 5 stars review

Sleepless in Chicago

So far so good. Takes some adjustment. Last night was great.

Review from Serta
Helpful?1L02F9H4SZMK15183522499
Dec 4, 2024
Cleveland G
5 out of 5 stars
5 out of 5 stars review

New mattress

Comfortable and perfectly firm

Review from Serta
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Nov 9, 2024
Tikki S
4 out of 5 stars
4 out of 5 stars review

Great mattress

I haven’t had great sleep in a long time, this mattress has changed that.

Review from Serta
Helpful?1L02F9H4SZMK15183522499
Jan 6, 2025
Aida V
5 out of 5 stars
5 out of 5 stars review

Comfy

I hope se will sleep well.

Review from Serta
Helpful?1L02F9H4SZMK15183522499
Mar 3, 2025
Lavettra C
4 out of 5 stars
4 out of 5 stars review

P

Comfy and supportive mattress; it sleeps very well. It’s also very heavy.

Review from Serta
Helpful?1L02F9H4SZMK15183522499