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Customer reviews for Serta Perfect Sleeper X Knox Hybrid Mattress for
Serta Perfect Sleeper X Knox Hybrid Mattress
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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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Sep 14, 2025
Sherry S
5 out of 5 stars review

Best sleep ever!

Very comfortable and supportive! Woke up after the first nights sleep with no up pain!!

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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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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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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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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Jul 14, 2025
Crystal B
4 out of 5 stars review

Love it

I like firm beds. This is just what I needed. Comfortable.

Review from Serta
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Jun 5, 2025
Erika P
5 out of 5 stars review

Excellent Mattress

So very comfortable and cool!

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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May 27, 2025
Peggy B
5 out of 5 stars review

Serta hybrid

So comfortable. Sleep loke a baby. Love it

Review from Serta
Helpful?7JIQY3DE2VJ715231853527