sopor-, sop- +
(Latin: sleep, deep sleep)
sopor
A profoundly deep sleep.
soporal
Of or pertaining to sleep.
soporate
To put to sleep; to dull, stupefy.
soporation
A putting or lulling to sleep.
soporiferous
Inducing deep or profound slumber.
soporiferously
Of a disease, morbid state, etc.: Characterized by unnatural or excessive sleep; soporose; lethargic.
2. Affected with numbness or "sleep".
soporiferousness
The state or quality of being soporiferous; sleepy, or lethargic condition.
soporific
1. Inducing sleep; soporiferous.
2. An agent that induces sleep; soporifacient.
3. Inducing or tending to induce sleep; causing a person to sleep or slumber.
4. Of the nature of, characterized by, belonging to, sleep or sleepiness.
5. A drug or other agent that induces sleep.
soporose
Of diseases, states, condition, etc.; marked or characterized by morbid sleep, stupor, or abnormal slumber.
soporous
1. Associated or affected with a coma or profound slumber; resembling sound sleep.
2. Soporific; sleep-bringing.
Related "sleep" units:
dorm-;
hypno-;
letho-;
narco-;
oneiro- (dream);
somni-.