Some side effects of lack of sleep include daytime fatigue, poor job performance, hypertension, depression, anxiety, and an increased risk of motor vehicle accidents, according to Bustle.
If you’re practicing good sleep hygiene (going to bed at the same time every night, sleeping in a dark room, keeping your phone far, far away, etc.) but still wake up tired, it could mean some kind of weird sleep disorder is cropping up in the middle of the night, or another outside force is keeping you awake.
“If you find yourself constantly waking up tired in the morning, seek the advice of a doctor experienced in diagnosing and treating sleep disorders,” Edelson says. He or she can find out what’s going wrong, and give you some treatment options so you can finally get the rest you need.