So far so good. I can honestly say I feel that my quality of sleep has been improved since I have had this pillow. When I wake up I feel refreshed and ready to go. Previously, I only slept on feather/down pillows and this pillow is as comfortable as can be. It is quite cool to the touch when I first lay on it and while the coolness dissipates, the core temp of the pillow stays neutral and doesn't seem to heat up like other pillows I have tried. This pillow certainly gets two thumbs up from me, will be recommending it to my family as well. If you sleep hot like I do, try this pillow, it makes quite a difference. Thanks Molecule!