12" Luxury Gel Mattress w/Vented Cover

Anyone have any experiences with this? I need a new twin for the tot.

Yes, bought a king size for myself on 10/2015. Still going strong, no dips in it. I do rotate it every 3-6 mos., it’s a medium firm. I ended re-using an existing 2 inch memory foam topper on top of it.
Which made it perfect for me.
Soft and cushy on top, but firm underneath.
Would buy again, you should let it re-inflate for a couple of days before using it.