To say “I’m not a morning person” would be an understatement. Not only is it hard for me to be useful in the first hour (or so) of being awake, but it’s hard for me to wake up. I mean, really hard.

Early risers can get a boost in the morning by tweaking how they wake up. If your go-to wake-up method is a classic bedside alarm clock, you should consider switching to a sunrise alarm clock. These ...