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Sleep Tracker
Posted by admin on July 31st, 2008
The length of the sleep cycle varies for each person, and averages about 90 minutes. I wanted to try to measure the length of mine, without having to wake up and check a clock. I also wanted to get an idea of how much I naturally move around during the night, and what patterns I might find therein. [via]
Sleep Tracker - [Link]
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