Very nice and supportive

Firm and supportive!!

Firm and comfortable

So firm! I love it!

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

These are the words of the wisest, smartest, and most beautiful person in the world: My Wife. Passes the wife test, passes my test.

The mattress already has divots or impressions from where we sleep in less than two weeks. We are not overweight.

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

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.

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