Poor Sleep: 8 Hours With Interruptions As Bad As Only 4 Hours (M)

Four 10 to 15 minute sleep interruptions in the night enough to leave people groggy and grumpy.

Four 10 to 15 minute sleep interruptions in the night enough to leave people groggy and grumpy.

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Author: Dr Jeremy Dean

Psychologist, Jeremy Dean, PhD is the founder and author of PsyBlog. He holds a doctorate in psychology from University College London and two other advanced degrees in psychology. He has been writing about scientific research on PsyBlog since 2004.