This is an awesome mattress pad, holds up so very well, I already had one for my king size bed.  This pad is really nice, I am in menopause, and this most definately helps keep me cooler, paired with a cooling pillow and the right bamboo rayon sheet set, and your good to go, especially if you run rather hot at night, like me.  My husband complains that they are a little too cool for him, he sleeps with an electric throw over his side of the bed.