Pzizz, a highly rated nap/sleep aid that works by generating unique binaural soundtracks for better snoozing, is on sale today for $24.95 at MacUpdate (38% off). Normally I wouldn't throw something like this out there, but I happen to know Edward, the guy behind Pzizz, and have been chatting with him ever since he showed up on my blog (thanks Digg!), and know that he's a great guy. Personally, I've found Pzizz really handy not just for how it helps me fall asleep (which it does) but for both the quality of rest that I get and the way in which it wakes me up; unlike an alarm that zaps you into consciousness, Pzizz is designed to gradually bring you out of sleep in waves, slowing reviving you and helping you feel refreshed. LifeHacker and 43Folders have been all over Pzizz, so if you've had any doubt (or if you have an iPod!), you should definitely consider this a great opportunity for grabbing some Pzizz's.