An incredibly common Furby glitch that never allows the Furby to wake up, even if it's not in a dark place.
Mostly seen in Furbies that haven't been used in a long time.
Also used with the acronym "MSA".
me: I just found my old 1998 Furby in my closet. Turns out it was affected with Me Sleep Again. How do I fix this?
friend: idk, just look it up on youtube or something