Very dissatisfied with this protect. Our mattress arrived with a snug fit since it zipped top to bottom. This one has several extra inches in depth probably to fit a thicker mattress. Ours is 8 inches thick and the protector is a loose mess. I wish there was one made for the original mattress. The one we purchased was very expensive and certainly not worth it. I swore by our original tempurpedic but will look at different brands now. Ours was purchased in 2004 with a 20 year guarantee. Give us a choice so the protector would fit what we are trying to protect.