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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
stars
249 ratings249 reviews
  1. 5 stars79% (197)
  2. 4 stars15% (38)
  3. 3 stars3% (7)
  4. 2 stars1% (2)
  5. 1 star2% (5)

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Showing 121-130 of 249 reviews
Sep 7, 2025
Won mee A
5 out of 5 stars
5 out of 5 stars review

Great

Comfy and what we were looking for.

Review from Serta
Helpful?1L02F9H4SZMK15215424793
Sep 14, 2025
Sherry S
5 out of 5 stars
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
Helpful?1L02F9H4SZMK15215424793
Oct 30, 2025
Michael M
5 out of 5 stars
5 out of 5 stars review

Wonderful!!!!!!!!!!

No more sagging mattress, very supportive.

Review from Serta
Helpful?1L02F9H4SZMK15215424793
Dec 12, 2025
Debbie H
5 out of 5 stars
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
Helpful?1L02F9H4SZMK15215424793
Oct 13, 2025
Bertha S
5 out of 5 stars
5 out of 5 stars review

Serta

I like a firm mattress and this fits my needs

Review from Serta
Helpful?1L02F9H4SZMK15215424793
Nov 29, 2025
William H
5 out of 5 stars
5 out of 5 stars review

Noce bed

Bought it with an adjustable base. Seems comfortable

Review from Serta
Helpful?1L02F9H4SZMK15215424793
Sep 12, 2025
Angel B
5 out of 5 stars
5 out of 5 stars review

Better than any mattress!

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

Review from Serta
Helpful?1L02F9H4SZMK15215424793
Aug 31, 2025
Sharron A
5 out of 5 stars
5 out of 5 stars review

Good quality

Nice mattress good support

Review from Serta
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Dec 5, 2025
Geraldine T
5 out of 5 stars
5 out of 5 stars review

Hybrid Serra mattress

Great for relief of my back pain so far

Review from Serta
Helpful?1L02F9H4SZMK15215424793
Dec 5, 2025
Susan A
5 out of 5 stars
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
Helpful?1L02F9H4SZMK15215424793