One of the few things we saved from our first 2 kids was a crib and mattress. We are definitely going to use the crib (non-drop side) again, but are debating about the mattress. It was bought in 2010 and only used for our 2nd child. I forget the brand, but it was the one recommended by Baby Bargains at the time. It has been wrapped in plastic (but not totally sealed) in the basement for 2-3 years since we moved our son to a twin bed. Would you use it again or buy new?