Sleep disturber
I believe the answer is:
alarm
(Other definitions for alarm that I've seen before include "Wake-up call?" , "Panicky concern" , "Great concern" , "Anxious awareness of danger" , "Warning of danger" .)
I believe the answer is:
alarm
(Other definitions for alarm that I've seen before include "Wake-up call?" , "Panicky concern" , "Great concern" , "Anxious awareness of danger" , "Warning of danger" .)