Perfect Sleeper. We're able to sleep at night. Very satisfied with with our back problems. Problem satisfied, very firm comfortable.❤️👌

This mattress is firm and supportive exact comfort for me with a touch of softness like a pillow top. I just love it.

Our new Serta mattress and box springs are very comfortable and supportive (for my bad back). This mattress is very well made.

My sister seems to be comfortable and sleeps well through the night. No more saggy mattress she wakes up with a smile on her face.

Not too firm, not too soft, just right! In love with my new mattress. Highly recommend. It makes a difference!

I love the Serta Knox firm mattress! Even though it is firm, it is comfortable and I can sleep without any issues.

Very supportive mattress. A restful night sleep.

Comfy and supportive mattress 👍

Best nights sleep in sooo long! Soft enoght o invite,firm enough to support.

Hoping it will soften soon