If you have children and need to be reachable for emergencies, set your phone to vibrate on their school’s number only.
You can also have a radio playing softly, a fan humming, or a personal audio device like an iPod playing sounds of the ocean, forest, or a river.
The exception to this rule of avoiding any “medicinal value” items like alcohol or sleep-aids is if your doctor prescribes you medication to alleviate a sleep issue.
