My 7 year old, who typically loves age appropriate creepy books and shows was afraid to go to sleep after the teen monster who goes around giving children nightmares while they sleep. She's had it stuck in her head for a week. It's my fault I trusted the show to be kid friendly for her age, but it has the kiddish look of a 1st-2nd grade show. I'd say 9-10 year olds at the youngest. Beware.