Why only 21 and up? In Holland, you can buy Alcohol (LEGALLY) starting at age 16.

Anyway, Alcohol makes your dreams a lot weirder usually, and it surpresses REM, yeah. Anyways, this would only work if you set your alarm at a time where you havn't had REM but ARE sober. Because if you wake up and are still drunk, your REM will still be surpressed.

Also, AILD? Meh. It's just WILD, under influence by Alcohol.