My medication makes me drowsy, so I do nod off just about every afternoon. This is something specific to my post-college life. Usually, I'll listen to Vangelis (his El Greco album is the most pastoral thing I've ever heard), George Winston, or City of Prague Philharmonic's "History of Horror" to entertain me as I drift around, then, about 45-90 minutes later, I'll be refreshed enough to get back to work.