😴☽⬇️
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#deep sleep
#deep night sleep
#restorative sleep
#delta sleep
#sound sleep
#stage 3 sleep
🛌🧠😴📉
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#NREM stage 3
#deep sleep
#brain waves
#sleep cycle
#delta sleep
#SWS
#EEG pattern
#sleep analysis
#deep sleep #deep night sleep #restorative sleep #delta sleep #sound sleep #stage 3 sleep