Pali The Sleep Trainer
Pali features a visual timer that helps kids see and understand, and a positive reinforcement drawer, to help your kids get more sleep.
Shortly before your child's wake time, a ring appears around the clock face and slowly diminishes as it counts down the remaining sleep time (much like the progress bar on a movie). When the countdown is complete, the light turn greens and your child knows it is OK for them to get up for the day.