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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 81-90 of 229 reviews
Nov 27, 2025
Tammy P
5 out of 5 stars review

Comfy

Just the right support, very comfortable

Review from Serta
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Dec 12, 2025
Debbie H
5 out of 5 stars review

Comfy!

Nice and firm, very comfortable and I do not want to get out of bed!!

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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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
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Dec 5, 2025
Geraldine T
5 out of 5 stars review

Hybrid Serra mattress

Great for relief of my back pain so far

Review from Serta
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Dec 8, 2025
Kendra B
4 out of 5 stars review

Getting to know each other

First few nights was a little stiff. But now settling in and super comfortable.

Review from Serta
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Dec 5, 2025
Susan A
5 out of 5 stars review

Truly the Perfect Sleeper!

Perfect amount of firmness and comfort; definitely helped with healing my total hip replacement.

Review from Serta
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Nov 8, 2025
Charlene S
5 out of 5 stars review

Bush & Gilles - Single XL

Seems to be a great mattress

Review from Serta
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Nov 22, 2025
Ronda S
5 out of 5 stars review

Firm and comfortable

Love new mattress. Side sleeper and it is not too firm to cause discomfort. Highly recommend.

Review from Serta
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Mar 22, 2026
Alexander M
5 out of 5 stars review

Excellent firm mattress

Very supportive

Review from Serta
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