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Sam's Club
Sam's Club
Customer reviews for Serta Perfect Sleeper X Knox Hybrid Mattress for
Serta Perfect Sleeper X Knox Hybrid Mattress
4.7 out of 5 stars
stars240 ratings240 reviews
  1. 5 stars79% (189)
  2. 4 stars15% (37)
  3. 3 stars3% (7)
  4. 2 stars1% (2)
  5. 1 star2% (5)

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Showing 161-170 of 240 reviews
Sep 18, 2025
Arthur T
4 out of 5 stars review

New Mattress

So star, so good!

Review from Serta
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Sep 22, 2025
Cindy D
5 out of 5 stars review

Sleep like a baby

So firm! I love it!

Review from Serta
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Sep 18, 2025
Maha A
5 out of 5 stars review

Great quality

Comfy and nice matters

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Sep 3, 2025
Phyllis W
5 out of 5 stars review

Excellent and importantly so comfortable

Firm and comfortable

Review from Serta
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Jul 31, 2025
Cherrie K
4 out of 5 stars review

Serra for good rest

Comfy for back issues

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Nov 3, 2024
Sonja G
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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May 28, 2025
Mary T
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.

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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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Apr 19, 2025
Jeremy H
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.

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Mar 27, 2025
Sarah U
1 out of 5 stars review

Impressions permanent in less than two weeks

The mattress already has divots or impressions from where we sleep in less than two weeks. We are not overweight.

Review from Serta
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