You have a sleep disorder – There are many types of sleep disorders, but there are three common ones that cause people to struggle to wake up in the morning. Sleep phase disorder is a disorder where a person’s melatonin secretion (the hormone that makes you sleep) doesn’t shut off until 9 or 10 am. Also, this delay in shutting off melatonin secretion is normal in people under 25.
The treatment involves using melatonin supplements, which causes natural melatonin secretion to shut off and go to bed at the desired time. The other two causes, obstructive sleep apnea (not breathing well during sleep) and periodic limb movement sleep disorder (moving too much during sleep) require a formal sleep study to diagnose and some type of medical treatment. While a doctor has to order a sleep study, your fitbit (or other wearable) may give you a clue that you have a problem and need a sleep study.
Contributors: Scott Carroll from Don’t Settle: How to Marry the Man You Were Meant For