Received the mattress topper about two weeks ago.  I layed it out for 2 -3 days  as pre instructions  It has been about 10 days now and we just love sleeping on the mattress
 topper  It is so comforable and soft.  Our mattress is only 2 years old but it was very hard  to sleep comforable and the  store where we got the mattress came out to check it and they said it was fine  So I sent for the topper and  what   a difference it made  , we are geting a good night sleep  now. I would highly recommend this topper .