[This review was collected as part of a promotion.] My daughter loves the upgrade from crib to big girl bed, and the crib mattress fit perfectly. It's a safe height from the floor and the railing and head/foot boards add an extra layer of protection. There's 5.5 inches of space from floor to bottom of the bed underneath so just tall enough to store toys, extra blankets, etc. and slide them under, or if you have short/compact storage bins. Assembly was pretty easy and everything arrived in perfect condition.