Thank you for posting—this shed light on my own bouts with hypersomnia in my early twenties. In my case, brought on by Major Depressive Disorder. A normal night's sleep for me was 12-14 hours, and on three occasions I slept 24-26 hours uninterrupted. I cannot begin to describe how disorienting it is to wake up a full day after you went to bed. For me, the hypersomnia melted away when my MDD was under control, and it's heartbreaking that some of these folks in the article can't find relief as "easily."