This is a very comfortable mattress, unlike the plastic coated cardboard-like others that I've seen for years.  My grand-daughter slept soundly and I'm glad I purchased this one. Only thing though, I purchased a bedding set and the sheets and blanket were too small. I thought a crib sized mattress fits a toddler bed.  I had no problems with my other grandchildren's beds as their crib mattresses fit the different toddler beds.  Maybe things have changed since I last bought one.