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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
264 ratings264 reviews
  1. 5 stars79% (208)
  2. 4 stars15% (40)
  3. 3 stars3% (9)
  4. 2 stars1% (2)
  5. 1 star2% (5)
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Showing 11-20 of 264 reviews
Apr 4, 2026
Reviewer name: Linda F
5 out of 5 stars
5 out of 5 stars review

Had a full nites sleep!

Wanted firm. Got firm. Kept firm didnt sink in... I slept 12 hours straight instead of adjusting & waking up every 2 hours and woke up with zero aches & pains! Its night #4... im hoping it will last days weeks months & years to come ?

Review from Serta
Helpful?5QG9W3640AJR15235570026
Apr 18, 2026
Reviewer name: Xenia D
5 out of 5 stars
5 out of 5 stars review

Just right

I was unsure about ordering a comforter online that I didn't get to test first. Luckily it worked out providing the support and softness that I wanted.

Review from Serta
Helpful?5QG9W3640AJR15235570026
Mar 25, 2025
Reviewer name: DrJLD
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

A Perfect Balance of Comfort and Support!

We absolutely love our Serta mattress! At first, it felt a bit stiff, but after a few days of breaking it in, it became incredibly comfortable. We made the switch from our previous pillow top options because they kept breaking down too quickly, and we're so pleased with our decision. This mattress provides great support and feels much more durable. Overall, we couldn’t be happier with our purchase!

Review from Serta
Helpful?5QG9W3640AJR15235570026
Sep 19, 2026
Reviewer name: Lorraine B
5 out of 5 stars
5 out of 5 stars review

Wonderful new mattress

Great mattress! Comfortable and supportive.

Review from Serta
Helpful?5QG9W3640AJR15235570026
Oct 3, 2026
Reviewer name: Britt L
5 out of 5 stars
5 out of 5 stars review

Love it!

I love the mattress! It's firm but not too firm and very thick!

Review from Serta
Helpful?5QG9W3640AJR15235570026
Sep 28, 2026
Reviewer name: Anna C
5 out of 5 stars
5 out of 5 stars review

Very comfortable

This mattress hugs you all night. It's wonderful.

Review from Serta
Helpful?5QG9W3640AJR15235570026
Oct 4, 2026
Reviewer name: Gretchen B
5 out of 5 stars
5 out of 5 stars review

Perfect for me

This mattress is just what I needed. Firm yet comfortable. I can move around easily.

Review from Serta
Helpful?5QG9W3640AJR15235570026
Oct 7, 2026
Reviewer name: Mary C
5 out of 5 stars
5 out of 5 stars review

Super comfy

Great comfortable mattress

Review from Serta
Helpful?5QG9W3640AJR15235570026
Jun 17, 2026
Reviewer name: Amy H
2 out of 5 stars
2 out of 5 stars review

Hurts my back

Something hurts mid back. Trying to sleep a little lower so the hips are in one of the softer zones but not happy so far.

Review from Serta
Helpful?5QG9W3640AJR15235570026
Aug 5, 2026
Reviewer name: Stanley L
5 out of 5 stars
5 out of 5 stars review

Restful Sleep

comfortable sleeping........remote is a bonus .........still finding our perfect setting for head and leg adjustment

Review from Serta
Helpful?5QG9W3640AJR15235570026