If you’re having trouble getting your kids to sleep each night, you might want to consider keeping them away from the TV.

According to a new study, the more time you let your kids watch TV before bed, the later they’ll actually get to sleep.

Researchers found that kids who went to bed later had 13 minutes more screentime before sleep than kids who get to bed earlier.

A lot of this has to do with all the light flickering on the screen. That light suppresses a hormone that is supposed to tell the brain it's time to sleep.

On top of the hormone trouble, kids’ sleep is also delayed because of the excitement of what’s going on in the story on the screen.