What happens if you don’t sleep? Surely, most of us as teens or college students have asked the question, “How long can you stay awake?” at sleepovers, “all-nighters,” and events, but was that really bad for us? What happens when you don’t sleep, as far as the effects on your body, organs, and systems? We’ve created a sleep deprivation timeline based on scientific studies and personal accounts of sleeplessness record-holders like Randy Gardner, showing what typically happens to one’s body after hours, days, and even weeks of no sleep. Spoiler alert: Going without sleep can be pretty alarming!