Its frustrating when you collapse into bed at night, only to conk out for a few hours before suddenly finding yourself wide awake and staring at your ceiling. (Or, even worse, listening to your partner snooze away on the other side of the bed.)

The phenomenon is hardly uncommon. A study published in the Journal of Psychiatric Research found that 35 percent of the general population deals with middle-of-the-night insomnia at least three nights a week , and 23 percent wake up at least once every night.

Curious how to halt the issue and get the zzzs you deserve? Below, sleep experts share why you might be waking up at night and some ways to stop it:

The problem: You bring stress into the sheets.