The reality is, few wake up to the sound of birds chirping and light filtering in through the window. A far more common experience? Being jolted awake by the sound of a blaring iPhone alarm. And while ...

If you're a very heavy sleeper, you already know a regular alarm clock usually doesn't get the job done, and phone alerts or easygoing sunrise alarms don't rouse those who are deep in an REM cycle, ...

When you buy through our links, Business Insider may earn an affiliate commission. Learn more Clocks are falling back, and with that comes shorter days and less daylight. As your body adjusts, the ...