Serta Perfect Sleeper X Knox Firm Mattress

It's comfy and definite upgrade our son loves it

It is a full size mattress with about 3" of topper foam. Medium firmness.

I been sleeping for about five days and it just feels good!! rested and ready for the day

Soft n great to sleep in the nighttime

My son loves the comfort and the medium/firm feel. He sleeps well on his new mattress.

Super comfy, affordable, sleeps great

Great mattress very comfortable

I am sleeping much better since I bought my Sets Mattress.

This bed has been comfy from the start. No break-in period. Sleeping better.