I didn't need a month or even a week to get used to the Purple Plus mattress. I'm older and heavy, with arthritis, plus healing from torn muscles due to a near-fall. I'm so grateful for the support and comfort this mattress provides. I was cautious before buying it, because I really hate the heat buildup of memory foam and a soft plastic foam grid didn't sound much better. However-it is. Much. Much. Better. It does warm to body temperature during the night, but the heat doesn't build up past that. Plus, because of the air pockets, heat dissipates quickly if you want to be cooler-just skootch over for a bit, then skootch back. Such a difference. Thank you Purple.