I love these sheets! I have a queen size bed with a thick mattress and the deep pockets fit the mattress perfectly and dont slip off. We recently added a memory foam topper that added an additional 3 inches to our mattress, the sheets just barely fit over, so we purchased straps with clips that keep the sheets secured. Now, my husband grts really hot and of course sweats like crazy, but with these sheets it seems like hes much cooler and not sweaty wet sheets like our other ones, I purchased these in white and I have to say Im impressed at how easily they come clean and they dont look dirty or dingy