Stage N1 Sleep Overview

Stage N1 (Non-REM1) Sleep

• First stage of non-REM sleep.
• Characterized by drowsy sleep and absence of rapid eye movements (REM).
• Presence of myoclonic jerks (sudden muscle movements).
• Often involves a sensation of falling, contributing to the term "falling asleep."
• EEG patterns show theta waves, which are slower in frequency and greater in amplitude than alpha waves.
• The transition from relaxation to Stage N1 sleep is gradual.