During the toddler year of a child, some children have trouble sleeping and staying in bed. For this problem, we designed Nunki. Nunki is an interactive cuddly toy that can measure the heart rate of the child. This data is used to change the speed and brightness of a moving projection of the wall of ceiling, so the child is distracted and will stay in their bed. Furthermore, every time the heart rate goes down, the music will adjust to a slower beats per minute, encouraging the heart rate to go down even more. After half an hour, the program will slow down and gradually shut off, to make sure it does not wake up the child anymore.