[This review was collected as part of a promotion.] This mattress is super comfortable and gives us all the support we need, have seen a difference waking up with less body ache and strained back muscles.

[This review was collected as part of a promotion.] This is a great mattress. It's tall, so if you have a tall frame you might want to get a new one. I love it. It's comfortable. I do think it could use a little more support but I love it.

Having slept on our new Serta Perfect Sleeper X Hybrid Knox Plush Cal King for two nights has been wonderful. Supportive and comfortable for much needed good night sleep.

Once I lay down to sleep, I fall to sleep immediately and sleep the entire night. It is very comfortable and no aches or pains. I am totally happy and satisfied with it

Great night's sleep!

Firm and supportive!!

So far it’s comfy

No more back aches

Comfy and nice matters

Very nice and supportive