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The Phases of Sleep

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The Phases of Sleep

By: Alexandra Hayes
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About this listen

 There's a reason our bodies need eight hours of sleep—so much happens while our heads are on the pillow. From non-REM, to slow-wave, to REM sleep—find out how every stage performs a vital function.©2020 Audible, Inc. (P)2020 Audible, Inc.
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