Sleep
Light Sleep Stage
Light sleep (N1 and N2) fills much of the night and supports memory processing and body repositioning before deeper stages. Fragmented light sleep—frequent brief awakenings—leaves you tired even when total hours look adequate.
Light sleep (N1 and N2) fills much of the night and supports memory processing and body repositioning before deeper stages. Fragmented light sleep—frequent brief awakenings—leaves you tired even when total hours look adequate.
Stress, alcohol, and irregular bedtimes often thin deep and REM while light sleep expands.
Related terms
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