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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
stars237 ratings237 reviews
  1. 5 stars79% (188)
  2. 4 stars16% (37)
  3. 3 stars3% (7)
  4. 2 stars0% (1)
  5. 1 star2% (4)

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Showing 131-140 of 237 reviews
Aug 8, 2025
Deborah F
5 out of 5 stars review

Serta Knox Firm Mattress

This mattress is very firm & comfortable mattress.

Review from Serta
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Sep 7, 2025
Won mee A
5 out of 5 stars review

Great

Comfy and what we were looking for.

Review from Serta
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Jul 2, 2025
Shoi G
4 out of 5 stars review

Super firm

I wanted a firm mattress and I found the perfect one.

Review from Serta
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Sep 18, 2025
John P
5 out of 5 stars review

John P like looks

Just got today, I’ll know better tomorrow.

Review from Serta
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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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Sep 18, 2025
Betsy C
3 out of 5 stars review

Firm but comfy

It’s a really nice mattress we just have to get use to the firmness!

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

Very firm and love the zero G

Very firm and love the zero G

Review from Serta
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Jul 16, 2025
Edward V
4 out of 5 stars review

New Serta Mattress

So far, comfortable and may help the back issues.

Review from Serta
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Aug 31, 2025
Sharron A
5 out of 5 stars review

Good quality

Nice mattress good support

Review from Serta
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Sep 20, 2025
Pam C
5 out of 5 stars review

Extremely comfortable

This mattress is so comfortable. It gives to your body but also supportive.

Review from Serta
Helpful?7JIQY3DE2VJ715235570013