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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
stars229 ratings229 reviews
  1. 5 stars79% (181)
  2. 4 stars16% (36)
  3. 3 stars3% (7)
  4. 2 stars0% (1)
  5. 1 star2% (4)

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Showing 131-140 of 229 reviews
Sep 12, 2025
Angel B
5 out of 5 stars review

Better than any mattress!

Bed is firm comfy…just the way we like it!

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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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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Jun 13, 2025
Analuci M
5 out of 5 stars review

Nice and firm mattress

Looks really solid and durable. My son will love it!

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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Aug 3, 2025
Jason S
5 out of 5 stars review

Plush

Mattress is plush and comfy. And a great fabric coloration.

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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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 4, 2025
Benjamin M
5 out of 5 stars review

Perfect mattress

Comfortable, firm but not overly firm, and just right!

Review from Serta
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May 27, 2025
Peggy B
5 out of 5 stars review

Serta hybrid

So comfortable. Sleep loke a baby. Love it

Review from Serta
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