I have tried many top quality mattresses and I have to say this is the most supportive hands down. My family always bought their beds from Serta my whole life so when I wanted to get a new quality mattress there was no thought about it I came back here to Serta. The Kleinmon has great comfort as well but I am impressed with how as a firm mattress it still feels very comfortable. I fall to sleep so much faster now on this bed. Buying this bed was the best choice and I know I will enjoy it for years to come because it is so well made. Thank you Serta !!!