I have a 3 inch thick king-size Serta memory foam mattress topper. Very comfortable to lay on, like sleeping on a cloud. Bought it for our old mattress, but then decided to get a new mattress. Only used a couple of months. I have it in shrink wrap plastic all rolled up, so I don't have a picture of it. Purchased from Kohl's and paid over $200. Excellent condition, clean, non-smoking household. Serious inquiries only please.