It's just one smooth electric guitar throughout. If you're looking to get some solid sack time, this disc should help you out a lot. And, yes, it may make you a little droopy eyed in the middle of the day, too. If, however, you're addicted to say, meth this may not make you drift off. Let me make this statement, however.
Airs has a calming, soothing feeling.
This, also, is the part that is likely to make any late night driver wish they had something loud on their car radio, maybe that Metallica tune Enter Sandman, or something similarly ironic. Anyway, the point is this. Airs basically gives the world an hour's worth of slow, ambient, and at times, beautiful guitar music. It's the kind of stuff that one man might play on his guitar to calm himself down. It's also a good disc to get anyone in a relaxed, almost hypnotized state.