Love it!!
This thing is amazing!!  This isn't supposed to work on memory foam I don't think, but I was desperate so I got it anyway, and it's been a miracle worker!!  My bed has felt like I was in a hole for a while now.  I was starting to develop back pain, and couldn't sleep on my stomach anymore because it was just so uncomfortable.  This thing has mad such a difference.  My bed is comfortable again!  I don't have back pain, and I no longer feel like I'm in a hole.  I got the thickest one because my mattress was sagging so much, and I just could not recommend this product more.  Totally worth the money.  It's amazing!
Rating: 5 stars