The mattress is comfortable and feels great. I had been waking up with a sore back from my old mattress, and that is now a thing of the past. There was no "gas out" period, and the price was half the price of the other mattresses I was looking at. I am very pleased with my Tuft & Needle mattress.
I thought the bed might be hot. Turns out is was the down comforter. So far this bed is very comfortable. Still new to me though. Every king mattress I've had gets that lump in the middle. If this bed does not do that I'll be a Tuft and Needle lifer.