Hacker News Reader

Sleep is one of the most important bodily functions, disrupting it because of silly reasons such as not waking up in light is ridiculous

View on HN

Because it is such an important function, and because light disrupts sleep, it is important to sleep mostly in the dark. If it gets light naturally in time to wake you up when you need to, great. If it gets light earlier, not great.

Reply on news.ycombinator.com