How many times have you heard something and thought yep that is true just because you have always heard it was.

Well according to a new study here are 5 things that most people believe about sleep but are 100% false.

Myth #1:  Drinking alcohol before bed helps you sleep.  32% believe it, but it's not true.  It might knock you out.  But alcohol messes with the quality of your sleep, so you wake up feeling less rested.

Myth #2:  Leaving the TV on helps you fall asleep.  30% believe it, but the opposite is true.  The blue light from your TV screen or phone actually keeps you up.

Myth #3:  The older you get, the less sleep you need.  29%.  Teenagers should get up to nine hours of sleep, compared to seven or eight for the rest of us.  But after that, it stays the same.  You don't need less sleep the older you get.

Myth #4:  Some people just don't dream.  25% believe it, but everyone dreams.  You just might not remember them.

Myth #5:  Sleeping on your left side helps with digestion.  25%.  A ton of articles online claim it's true.  But at best, it's just a theory.  There's no real evidence it works.