I've been using pzizz myself for several years.

Now, you may be asking yourself - What the heck is a pzizz?

Think 'zzzzzzzzzzzzzzz'

pzizz is an application that can be used to help you get to sleep if you have insomnia (those of us with active minds sometimes have trouble 'shutting off' at night). It can also be used to help fight fatigue and mind fog during the day by inducing short power naps.

pzizz soundtracks can be configured in a number of ways, including with or without verbal 'inductions' as well as being set for specific lengths of time according to your needs. The soundtracks also use binaural beats to 'entrain' your brainwaves - basically, by sending a different frequency pulse to each ear, the sound helps gently shift your brainwaves such that you easily enter a state of deep relaxation and then sleep. If you're using the napping module, then the soundtrack will also wake you up at the end of the time you've set.

It's really great.

They do have free sample soundtracks available for download, so do give it a try...

pzizz also now has iPhone/iPod Touch applications for both their sleep module and the relax (nap) module - just search 'pzizz' in the app store!