Security Bed RailAdded security to protect from night time falls. This Bed Rail fits a useful addition to the following bed from Oeuf NYC: Perch Toddler Bed and Perch Bunk Bed. The rail provides protection from night time falls, which allows a a younger child to skip the toddler bed and move straight from a crib to a full sized bed. Its easily attached to the bed, and easily removed once your child sleeps more calmly at night. The mattress should be 15 20 cm thick