"The Trending 20" is a regular series where we round up interesting, informative and hilarious tweets from worldwide Twitter trending topics, fueled by young tweeters on the interwebs. Have one to submit? Give us a shout @huffpostteen.
Yawn. Getting a good night's sleep on a school night is easier said than done -- just ask the Twitterverse. Today, young tweeters propelled the hashtag #10ReasonsWhyYouCantSleep into a worldwide trending topic, and while their reasons ranged from "texting my crush" to any and all One Direction-related distractions, the number one cause of insomnia for these teens was particularly unsurprising: Twitter.
Click through the slideshow to read 20 of our favorite responses, and share your own #insomniatriggers in the comments below or tweet @HuffPostTeen.