Usage Tips:Help Children Establish Routine Sleep Habits :Younger children can not fully understand the time,Meteor Routine Helper Sleep Trainer will teach kids when it's time to sleep and when to wake up .No more 5AM morning call,parent can sleep longer in the morning. HOW IT WORKSSun,moon,stars and light colors will teach kids when it's time to sleep or wake up: In the morning , it shows sun and green light when it's OK for children to get out of bed! At night , the clock shows moon and stars , so it's time to go bed and have sleep! Option to turn off alarm sound and just use red/green light for sleep training. Nursery Night Light & Nap timer 11 color lights and 3 warm light to help kids feel safe when sleep in the dark. Light timer will auto turn off in a certain time . Nap timer function allows to set a timed countdown for naps or other activities - add a silent alarm! Nursery Noise Machine17 sleep-aiding sounds to sooth the kids. Both lights and sounds are fully adjustable and the auto-off timer function (15, 30, 60, consistant on) gives you the option of powering off this toddler alarm clock for a quiet nights sleep. Fully Functional Alarm Clock for KidsMeteor Sleep Trainer features with child lock to prevents kids from accidentally changing the settings. Snooze allows 9 mins of extra slumber, perfect for use from ages 2-10 years child