Why does zzzzz symbolize sleep?

Mabey because when your trying to fall asleep you count sheep.

grahambo on November 18, 2009, 2:03 am

snoring

lofi on November 18, 2009, 2:11 am

it for the comics

kelbat on November 18, 2009, 2:12 am

Because 'Mmmmm' was already taken.

MrsCullen on November 19, 2009, 5:02 pm