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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 18, 2025
Maha A
5 out of 5 stars
5 out of 5 stars review

Great quality

Comfy and nice matters

Review from Serta
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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
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Dec 13, 2025
Fernando F
5 out of 5 stars
5 out of 5 stars review

Exelent for my back

good Support for my back

Review from Serta
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Oct 25, 2025
Gary E
5 out of 5 stars
5 out of 5 stars review

Comfy

No more back aches

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
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Nov 3, 2024
Sonja G
5 out of 5 stars
5 out of 5 stars review

grnlight

This mattress is firm and supportive exact comfort for me with a touch of softness like a pillow top. I just love it.

Review from Serta
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Jul 17, 2025
Kendra S
4 out of 5 stars
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.

Review from Serta
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May 28, 2025
Mary T
5 out of 5 stars
5 out of 5 stars review

Excellent mattress

I love the Serta Knox firm mattress! Even though it is firm, it is comfortable and I can sleep without any issues.

Review from Serta
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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
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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
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