Analyze your sleep stages and patterns
The transition phase between wakefulness and sleep. Lasts 1-5 minutes. You can be easily awakened during this stage.
Deeper than N1, but still light sleep. Makes up about 50% of total sleep time. Body temperature drops and heart rate slows.
The most restorative stage. Essential for physical recovery, immune function, and memory consolidation. Hardest to wake from.
Active brain state associated with dreaming. Important for cognitive function, learning, and emotional processing. Increases in duration throughout the night.
A typical night's sleep cycles through these stages multiple times, with each cycle lasting approximately 90 minutes. Deep sleep is more prominent in the first half of the night, while REM sleep increases in the second half.