The advertising about the mattress seems true. It does not sleep hot, like Tempurpedic, and is quite comfortable. It's firm, but not so hard that I feel pressure points when sleeping on my side. Our mattress was set up only a few hours before sleeping on, so I was concerned it would not be fully expanded in time. But, no problem with sleeping that first night. I currently have a sleep number, tempurpedic, and now T&N. Due to frequent travel, I have 3 different places I sleep regularly. By far, the T&N is the most comfortable.