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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
stars232 ratings232 reviews
  1. 5 stars79% (184)
  2. 4 stars16% (36)
  3. 3 stars3% (7)
  4. 2 stars0% (1)
  5. 1 star2% (4)

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Showing 81-90 of 232 reviews
Oct 30, 2025
Michael M
5 out of 5 stars review

Wonderful!!!!!!!!!!

No more sagging mattress, very supportive.

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Sep 29, 2025
Normand G
5 out of 5 stars review

Comfort!!

Very comfortable mattress!

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Oct 3, 2025
Alin K
4 out of 5 stars review

So far so good!

I've only slept on my new mattress five nights and I really like it already.

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Sep 30, 2025
Vincent W
4 out of 5 stars review

So far so good!

First week down. Mattress is very supportive.

Review from Serta
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Oct 19, 2025
Gary E
5 out of 5 stars review

Great!

Comfy & good night’s rest!

Review from Serta
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Apr 6, 2026
Marta Z
5 out of 5 stars review

Full size Mattress

Just unwrapped it.

Review from Serta
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Mar 28, 2026
Sarah A
5 out of 5 stars review

Ashley Furniture

Great firm mattress

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Jun 21, 2025
Erica N
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!

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Jul 17, 2025
Kendra S
4 out of 5 stars review

Sister bed

My sister seems to be comfortable and sleeps well through the night. No more saggy mattress she wakes up with a smile on her face.

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Sep 19, 2025
Debbe H
5 out of 5 stars review

Saved my back

I have a lot of health issues with my back and haven’t been able to find a mattress that is comfortable until now. Thank you so much.

Review from Serta
Helpful?7JIQY3DE2VJ715258655886