My opinion regarding product will not be very constructive. We have moved in, bought a new bed The bed is big enough for the room, I used to bang my knee on the bed wedge to join my side. And this every day. Any solution found I buy this item, Based on the good reviews. Since then it happened to me once. I do not know if it's unconscious, but since I installed these little corners foam, I might hit me ... Thank you anyway.