Definition of "deep-sleep" []

• Attributive form of deep sleep, noun. (adjective)

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• "Apparently lost in deep-sleep stasis somewhere in a cryo chamber hidden deep within Nintendo, NightSky should have been one of 2009's best, but -- with any luck -- will move on to top 2010 lists."
• "The quality of your sleep depends on your time in restorative slumber, including REM and deep-sleep phases."
• "Your goal is to go through all of the cycles because the REM phase affects learning and memory while the deep-sleep periods impact growth hormone release, rest, and recovery while strengthening your immune system."