I had no idea a mattress pad could make this big a difference. The Thomasville Cool-Tek mattress protector makes my memory foam pillow top mattress feel like an entirely different mattress. The mattress is softer, far more comfortable, and most importantly, stays cool. I no longer awaken numerous times a night drenched with sweat from the memory foam. I awaken in the same position I fell asleep in rather than toss and turn due to sticky sheets. I can't recommend this mattress pad highly enough.