What is the correct 'term' for eye-bogies?

Question

you know the stringy stuff lol

Answer 1

RHEUM is the correct term

Answer 2

I call it "sleep" no idea on the official name

Answer 3

Sleepy Dust

Answer 4

yeah, Ive just always called it sleep.

like 'having sleep in my eye'

Answer 5

People call it "sleep", but this would seem to be a back-formation based on the phrase "rubbing the sleep from one's eyes", which is metaphorical -- it simply means rubbing your eyes as you wake up, to banish the remaining sleepiness.