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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 121-130 of 237 reviews
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 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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Jun 15, 2025
James W
3 out of 5 stars review

Comfortable Sleep

Very firm. Looking forward to comfortable sleep.

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 28, 2025
Stephen m M
5 out of 5 stars review

Great mattress

Comfortable and supportive!

Review from Serta
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Oct 11, 2025
Marsha M
5 out of 5 stars review

Great mattress

Comfortable, great night sleep

Review from Serta
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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 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
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Sep 21, 2025
Katherine H
5 out of 5 stars review

Excellent

Supportive yet still feel I can sleep on my side comfortably!

Review from Serta
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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.

Review from Serta
Helpful?7JIQY3DE2VJ715213850200