Wordless Wednesday: What a sleep cycle looks like || Sleep Fundamentals
We have several cycles of sleep during the night. Here's what they look like from a sleep technologist's perspective
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W = Stage Wake
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R = Stage REM
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N1 = Stage 1 (nonREM)
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N2 = Stage 2 (nonREM)
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N3 = Stage 3 (nonREM)
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