The mattress protector does not fit the bed as snug as it should so it bunches up and makes laying on the bed uncomfortable. I will try using clamps that the CS rep suggested to maintain a tighter fit. We have a ProBreeze bed which has a cooling affect that also becomes totally lost with the mattress protector on. Currently there are no other options to protect the mattress and maintain the cooling affect. Hopefully they come out with a product that can do that.