Sandbot

This is a Telegram bot that calculates your recommended wake-up time from the time you expect to fall asleep or vice-versa. It is based on the 90-minute standard REM cycle definition, which essentially states your sleep can be divided into 90-minute cycles and healthy, energizing sleep consists of uninterrupted cycles (i.e., you wake up at the end of a cycle, not in the middle of it).

The name Sandbot comes from the Sandman myth, a being who can control someone’s sleep and their dreams. The picture I use is from the comic book of the same name written by Neil Gaiman.

You can check Sandbot out on GitHub.