[This review was collected as part of a promotion.] This mattress is a game changer for those experiencing back or hip pain. The mattress we have is firm. It provides just enough support so that when you get up in the morning you're not sore. It's definitely a thicker mattress than what we had had in the past and had to order deeper pocket sheets. Not an issue because it's the best sleep we've had in years. Highly recommend Serta mattresses!

[This review was collected as part of a promotion.] This PS23 SERTA PERFECT SLEEPER Cobalt Calm 14.5" MED PT is probably the best mattress I've ever slept on. I LOVE it! Definitely recommend to everyone! So comfy and great quality! Love love love it!!!

[This review was collected as part of a promotion.] This is a really attractive mattress. It is a darker blue color with a flowered design which helps disguise any staining that typically occurs on mattresses. The underside is flat so the mattress does not have to be flipped but I always find that flipping should be done on any mattress. We chose to go with an extra firm model because of back issues. It definitely takes some time to get used to such a firm mattress but your body will thank you later.

[This review was collected as part of a promotion.] This mattress is just what I needed. It's firm but still super comfortable and I'm no longer waking up with a sore back that alone is worth it. You can definitely tell this mattress is built with quality material's definitely a high end mattress.

[This review was collected as part of a promotion.] WOW! After sleeping on this Serta Perfect Sleeper is amazing!! I have lower back problems with constant dull aches to shooting pain. After sleeping on the Cobalt Calm, I can happily say that it has helped reduce my lower back pain! The firmness of the mattress and continued support has helped minimize the amount of stress on my L5 disc. It is such a peaceful sleep, that I'd rather nap on my bed than the couch in the middle of the day! We are now looking to swap out the mattress in our guest room for a Serta Perfect Sleeper so that our family and friends can get the same type of sleep that we do when they spend the night! Definitely Serta for life!!

[This review was collected as part of a promotion.] I received the SERTA PERFECT SLEEPER Cobalt Calm 14.5" FIRM PT a few weeks ago. I was a little concerned that it might be too firm but I can't sleep well on softer mattresses so I wanted to give it a try. Let me just say, I haven't slept better and I can't wait to crawl back in bed! It's firm but not hard. I have bad hips and this has even helped my hips to not feel sore in the morning after sleeping on my side all night. It stay cool throughout the whole night. That's big for me because I'ma very hot sleeper. I also love the fact it's anti microbial, so it will start feeling and smelling fresh longer than a typical mattress. Well done!

[This review was collected as part of a promotion.] I received my mattress a few days ago, and let's say it's an excellent mattress for my backache and desk hernia issues. It's very thick and rigid that it feels you are sleeping on the clouds or being carried. I have never felt this comfortable sleeping.

[This review was collected as part of a promotion.] I had it for a week and its just wonderful, my back and body thank me everyday. Very comfortable. I used o have back pain and feel tired every morning. Now that I have used this mattress I feel more rested and no back pain. The quality of the mattress is always great, Serta doesn't disappoint.

[This review was collected as part of a promotion.] I needed to replace my bed in my bedroom and went to serta to get a new mattress! This mattress is so comfortable and worth every penny! Keeps cooler than a normal bed and now I don't wake up hot or with achy back and bones from a broken down mattress! Serta js the way to go!

[This review was collected as part of a promotion.] I got this bed and was so excited to start using it. I have pain in my lower back and this mattress is magic! It's super thick and comfortable. I enjoy that when my significant other gets up, it doesn't wake me up. Great quality.