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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 91-100 of 264 reviews
Sep 27, 2024
Reviewer name: rebandwrath
5 out of 5 stars
5 out of 5 stars review

Perfect

[This review was collected as part of a promotion.] The most comfortable bed I have ever slept on in my life. It’s cooling too so it’s perfect for the summer when it’s too hot to sleep. Breathes easy and supports my body weight and heavy dogs with me.

Review from Serta
Helpful?5QG9W3640AJR15241662269
Sep 12, 2024
Reviewer name: jordanjd
5 out of 5 stars
5 out of 5 stars review

Better sleep and comforting! Great for my back.

[This review was collected as part of a promotion.] This mattress has been a huge help to the quality of sleep that my wife & I get. Before we had a firm memory foam mattress & it was causing some morning discomfort for both of us. After receiving this mattress it took a week or so to break it in but we have both been sleeping so much better & having little to no discomfort in the mornings. I will say it’s a bit too stiff to sleep on your side with but other than that it’s a great mattress overall. Great material & quality which makes me hopeful it’ll last many years.

Review from Serta
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Feb 12, 2025
Reviewer name: Guillermo Z
5 out of 5 stars
5 out of 5 stars review

Best Sleep Ever

We got a new mattress and after much deliberation, went with a Serta. We have no more back or hip pain when we wake up in the morning, it has great support, and I haven’t slept this great in years. Another thing that impressed me was the attention to aesthetics; the embroidered flowers on the mattress top are lovely. Thank you Serta!

Review from Serta
Helpful?5QG9W3640AJR15241662269
Sep 23, 2024
Reviewer name: sarahhhwhite_
5 out of 5 stars
5 out of 5 stars review

Best Night’s Sleep

[This review was collected as part of a promotion.] I was so excited to receive this mattress! This is the most comfortable bed that I have slept on. Everything from the cooling technology to the perfect balance of firmness to plush. I’ve never had any discomfort from sleeping and I am a side sleeper. I would recommend this mattress to anyone in the market for something new that has great cooling technology and molds perfectly to make a great nights sleep!

Review from Serta
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Oct 22, 2024
Reviewer name: photoginthewild
5 out of 5 stars
5 out of 5 stars review

Sleep Cool and Comfortable

[This review was collected as part of a promotion.] I have spent a full month sleeping on this mattress. I love it! I am a bit of a princess and a pea when it comes to mattresses. Most importantly for me, I am a woman who wakes up hot in the middle of the night. Not sweaty but just hot, not in a snuggly way but an uncomfortable way. I have not had that issue at all with this mattress. It conforms and cradles your curves if you are a side sleeper and it is a very tall mattress which I like. For reference, my previous mattress was a tempurpedic so I was worried about it being too soft but while the top is thick and plus, it has plenty of support. Very pleased with this mattress!

Review from Serta
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Feb 23, 2025
Reviewer name: Mattori
1 out of 5 stars
1 out of 5 stars review

Bad quality

I just started sleeping on this mattress and it has a horrible bubble in the middle. This is the cool calming queen mattress. It's a replacement for a different mattress from serta and it only lasted 6 months before the sides started caving in. I will never buy a serta mattress again.

Review from Serta
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Sep 3, 2024
Reviewer name: elenag92
5 out of 5 stars
5 out of 5 stars review

It offers everything I need

[This review was collected as part of a promotion.] This mattress strikes the perfect balance between firmness and softness. The hybrid design combines the support of coils with the plush comfort of memory foam. It’s firm enough to provide excellent support for my back, which is crucial after long days of household chores, yet soft enough to feel like I’m sinking into a cloud every night. One of my biggest concerns with mattresses has always been overheating during the night, but the Perfect Sleeper has really impressed me. The quilted top layer seems to do a great job of regulating temperature, keeping me cool. The build quality of this mattress is outstanding. It feels sturdy and well-made, and after several weeks of use, there’s no sign of sagging or wear. I believe this mattress will last for many years, which is a relief because I definitely don’t want to go through the hassle of mattress shopping again anytime soon! One unexpected bonus is the excellent edge support. I can sit on the edge of the bed without feeling like I’m going to slide off, which is great for those moments when I need to slip out of bed quietly without waking anyone else. Overall, it has been a wonderful addition to our home. It offers everything I need in a mattress: comfort, support, durability, and a cool sleeping experience

Review from Serta
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Sep 15, 2024
Reviewer name: ad116
5 out of 5 stars
5 out of 5 stars review

Great night sleep on this firm, pleasant cooling effect, high quality material and beautiful design pattern

[This review was collected as part of a promotion.] Great mattress! I was very excited to finally get a new mattress and I had such a great night of sleep after sleeping on this Serta one. My previous mattress was softer, and I had been waking up with some back pain, but this mattress is firm and helps a lot with my back and hips not sinking in as I sleep. It has a pleasant cooling effect so I didn’t feel overheated at night, and I love that it’s thicker as I like to sleep higher up off the ground since I am tall. It was such a shame to have to cover up the mattress with my bedding as I loved the design and dark blue and white color patterns. It also has helpful handles on the side so you can adjust it as needed on your bedframe. It’s on the heavier side, but most of my mattresses in the past have been heavy as well so I didn’t mind that. I prefer a heavier mattress, so it feels more sturdy when I am on the bed. I would definitely recommend this to anyone looking for a firmer high quality mattress!  

Review from Serta
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Sep 25, 2024
Reviewer name: aur0raxxborealis_8663
5 out of 5 stars
5 out of 5 stars review

Firm and hefty!

[This review was collected as part of a promotion.] The Perfect SIeeper Quilted Hybrid was aesthetically, a very clean beautiful mattress with quite a bit of thickness and heft, which made setting it up a bit challenging without assistance. The weight does add to the sense of durability and sturdiness. I was pleasantly surprised to find no odor, which is often an issue with newer mattresses. Most notably though, the mattress is quite firm, which is the style I selected. It's exactly as advertised, very firm. There is little cushion or give but provides great support. I would not recommend this mattress if someone wants to "sleep on a cloud" but rather, would be ideal for those needing extra back support. For anyone looking for a firm mattress that feels built to last, this one would be a great choice.

Review from Serta
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May 20, 2025
Reviewer name: Susan T
5 out of 5 stars
5 out of 5 stars review

The best sleep in years

I had my other mattress for 15 years, and it was great until the last week. I knew I had to replace it. I went to Mattress Peddler as I had been there when friends mattress shopping and was impressed with the professionalism and kindness of the owner. I love the mattress I purchased. Just the right firmness. I am so happy

Review from Serta
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