We've had this mattress 4 weeks today. It is the 2nd S & F mattress. We exchanged a Lux Estate PT for this Estate TT after the first mattress had body indentions after only 1 week! Now, after 4 weeks, this mattress is showing body indentions also! I am petite, 5'2" 112 lb. and my husband is 5'6", 160 lb. So, we are hoping the top will even out but not banking on it. Very disappointed given this is the second mattress and the price of both. Basically, what should be a wonderful experience (getting a new mattress) has turned into a sad experience.