The mattress edge is awful.  Sitting on the edge just a little and then when you lay down you roll off the bed.  I want to trade it in, but they want $90 to ship it back and I would have to buy another in advance BEFORE I get a refund.  I am under the 100 days but don't have the extra money to put out before I can get credit for this mattress so I guess I just roll off the bed at night.   Just stuff to be aware of.  I am disappointed in this mattress and need to center myself perfectly in the middle in order to sleep.