An iPhone app released Wednesday, Sleep101, combines expert advice with sleep tracking. Another plus? It’s free. There are a number of sleep tracking apps on the market, and plenty of devices that monitor sleep patterns. But the maker of Sleep101, a company called Zeo, has been in this game for a while — and it’s letting users benefit from the nearly one million nights of sleep data they’ve collected so far. The app tracks your bed movement to provide users with a timeline of when they were asleep and when they were awake. From each night’s sleep data, users will receive a “sleep score” they can share on social networks. Read the full story at Mashable.