Apparently, software such as Pzizz uses an algorithm that combines different data files to create a soundtrack for specific sleep goals. Does this work? Doctors are skeptical, but admit that specific cues have a big effect on our sleep. Things like the routine you follow before going to bed mean very specific things to our brains. So playing music, computer customized or not, really can have an effect...as long as it is something that is consistently associated with going to sleep.
- via Wired