It’s 3 p.m. on a Tuesday and you’d do anything for a donut… with chocolate filling… and those rainbow sprinkles on top. Are you hungry? Bored? You may just have a case of the “sleep munchies.” According to a recent study published in the journal SLEEP, a lack of zzz’s stokes your appetite just like marijuana might. Seriously! When you don’t get enough shut-eye, your brain lights up with the same chemicals that cause stoners to giggle over Funyuns and chomp on Twinkies.