You experienced segmented sleep [1]. Some argue that this is the natural way of sleeping, if you remove artificial lights and modern schedules. [1] http://en.w

You experienced segmented sleep [1]. Some argue that this is the natural way of sleeping, if you remove artificial lights and modern schedules. [1] http://en.wikipedia.org/wiki/Segmented_sleep http://en.wikipedia.org/wiki/Segmented_sleep