Please choose the correct ending to complete the given sentence: Youth: [header] How to fall asleep easier as a teen [title] Don't check the time. [step] Keep your phone screen off and turn your clock away from your bed so you can't see the time. Checking your clock will only stress you out and prevent you from falling asleep.

Ending1: Some experts suggest that regular bedtime checks may help you fall asleep faster, but no guarantees. Watch out for one of the following options : [substeps] If you sleep before 5 p.m. Ending2: Relax and trust that you'll fall asleep instead of checking the time and thinking, " if i fall asleep now, i can still get 6 hours of sleep. " [substeps] Additionally, checking the time on your phone will expose your eyes to blue light. Ending3: [title] Pour cold water or cold milk on your lower legs. [step] Before you fall asleep, take a cool washcloth or a cold compress over your lower legs. Ending4: Always shut off when the alarm signifies it's time to sleep. [substeps] Try to unplug from your phone at least a few hours before bedtime.

Answer format: ending1/ending2/ending3/ending4