Do you get a little snippy when you’re short on sleep? That’s normal. Just one bad night can make you sad, stressed, angry, and tired. If the trouble lasts, you may start to feel worse about your life. You might not want to hang out with friends and family. Over time this can lead to mood disorders like depression or anxiety. A better sleep routine is the answer. Talk to your doctor if it doesn’t help or if your symptoms get in the way of your life.