People who are very sleepy during the day, despite a good night’s rest, may have a sleep disorder called idiopathic hypersomnia. A new study has found this may not be as rare as once thought. Symptoms include sleeping excessive amounts of time, having difficulty waking up, and waking up disoriented.

People who are very sleepy during the day, despite a good night’s rest, may have a sleep disorder called idiopathic hypersomnia. A new study has found this may not be as rare as once thought. Symptoms include sleeping excessive amounts of time, having difficulty waking up, and waking up disoriented.