A multiple sleep latency test (MSLT), also known as a daytime nap opportunity study, is a sleep study that measures excessive daytime sleepiness. The test evaluates how fast you fall asleep in a quiet ...

Everything’s a little off when you haven’t had any sleep: you can’t remember where you put your cell phone, your eyes burn, ...

Colino is a contributor for TIME. Colino is a contributor for TIME. In a culture that’s highly goal-oriented, yet another form of performance anxiety has emerged: It’s called orthosomnia, and it ...

It turns out that your annoying friend who insists on closing all of the window blinds and covering all of the glowing ...