I really like this mattress, however, I rec'd a 10-inch instead of the 12-inch. So that's the reason for the 4 stars instead of 5. I chose to keep the 10-inch and Wayfair customer services did adjust the cost. The mattress does keep me much, much cooler than my old 10-inch gel mattress, which was like a furnace. The price was certainly right and while I was a little disappointed about the sizing, I was impressed with Wayfair's response in handling the matter.