Stephanie Manuli is junior ambassador for the Narcolepsy Network, reports

Stephanie Manuli was copying notes in 8th grade math class when something odd, but all-too-familiar happened.

Suddenly Stephanie was lost — as if some part of the lesson had slipped away without her knowing.

She glanced down at her notes, and instead of her usually neat handwriting, she saw scribbles. Stephanie had obviously moved her pencil during the time lapse, but her work was indecipherable.

Stephanie later learned she had been in a state of “microsleep,” where her eyes were open, her hand was moving, but she had no memory of what she had done.