We just bought a new mattress for the guest room and wanted to protect our purchase so we decided on this one. We’ve only had it for a week so don’t have too much to say about it only I’m not sure how long the zipper will last, it was a little tough to zip up and not because it was too snug.  I’m hoping I didn’t make a mistake by purchasing this  one rather than one that fits like a fitted sheet. Time will tell.