I don't have that bed, but I think Costco is a great place to buy a mattress because of the return policy. They will take it back after quite a while. If you order online and get it delivered, if you have to return they will even pick it up. We bought a nice latex mattress last year with a box frame. We liked the mattress, but hated the $400 frame. We called about 45 days later and they took it back, no questions. I've heard of people getting returns processed years later. Personally, I wouldn't take advantage, but I liked being able to try the mattress without penalty.