The phrase "short sleep" means getting less sleep than one needs. There are many synonyms for this term, including "nap", "catnap", "doze", "snooze", and "siesta". Other synonyms include "power nap", which is a short sleep meant to rejuvenate the body and mind, and "shut-eye", which is a term used to describe any sort of sleep, whether long or short. "Rest", "slumber", and "drowse" are also used to describe sleep in general, including short naps. Whatever the term used, it is important to remember the value of getting enough sleep for one's physical and mental health.