Answer:

snoring

AnswerCrossword Clue
SNORINGNocturnal noise
SNORINGSawing wood
SNORINGDorm noise
SNORINGIt keeps neighbors awake.
SNORINGThe perpetrator never hears it.
SNORINGSleep sound.
SNORINGIn unquiet sleep.
SNORINGNight sound.
SNORINGInvoluntary nocturnal activity
SNORINGNocturnal "woodcutter's" activity
SNORINGProblem in the bedroom
SNORINGInadvertent nocturnal activity
SNORINGDormitory din
SNORINGNapping audibly
SNORINGA little night music?
SNORINGCause of sleep deprivation?