The cozy elf house retreat is a whimsical structure straight from a fairy tale that is sure to attract children's attention all while helping them grow and develop. Playing inside or outside the kids playhouse gives wings to their imagination, helps develop muscle and problem-solving skills. Allows them to connect with nature and encourages them to build their curiosity. Children will become more engaged and active. This play cottage promotes the mental and physical development of your little ones in a safe environment. House provides children a place to play on their own. This role play builds social skills and confidence in children later in life. Mattress-4641660 for the floor of the house, sold separately. House is made of ½"thick birch ply. Roof and sidewall are made of Tornado polyester fabric in green and beige.