The last tempurpedic mattress covers I purchased were a few years ago. They were 1/3 the cost and fit snuggly on the mattress. These covers are definitely quality but they do not fit snug on the mattress. Every day I need to lift the sheet and tighten the cover under the mattress as the pad bunches up and lumps along the mattress. The sides of the covers do not appear elastic enough to keep from wrinkling