Ordered this to go on top of a mattress that was complained about as being to hard at our lake house. Now whoever sleeps in that bed says it is so comfortable they don't want to get out of bed in the morning. So for that this topper gets 5 stars.
Works well. Be careful no to pull thru the fabric used on the sides of the mattress cover. The material could rip a little too easy. Overall they are good. I am using them on the guest beds. They will not be washed as often. I would look for a different mattress cover for the beds that are used daily. I think that washing these and drying them on a regular basis, they might not last long.