This question was prompted by me waking up this morning with the entire front of my tshirt drenched with sweat.
Some nights I tend to sweat a lot. It doesn’t always seem to be related to temperature. Or if it is it is very inconsistent.
Is sweating while aspleep soley due to body temperature vs room temperature or are there more factors?
It could be related to disease or illness. Doctors have a tendency to get upset if you tell them you have random night sweats for an extended period of time.
Really? I’ve had “random” night sweats for my entire life. I always figured it was some localized temperature variation or something - maybe Gods way of testing my wife’s faith 
FWIW, I’ve been examined by many doctors for one reason or another, and never been diagnosed with any particular disease or illness.
I think doctors get more upset if you’ve never had night sweats, and then suddenly develop random night sweats over an extended period of time. Night sweats might be perfectly normal for you. It’s a sudden change in your body that could be a warning sign.
That’s what WhyKid’s doctor told me, anyway. Kid’s a sweater. Always has been. Even in the dead of winter, he sleeps with at most a T-shirt and shorts on and shuns blankets or even a sheet. And he still sweats up a storm. The fitted sheet and the mattress pad are often soaked through with sweat. The only other nighttime problem he has is that he still wets the bed (at 12 years old - ouch!), but all his doctors agree it’s not related. He is also the soundest sleeper I’ve ever met. We have not yet found an alarm that will wake him. My sitting on the bed and calling his name while rubbing his legs won’t wake him for several minutes. And it’s been that way since day 3 or so. I tried co-sleeping with him, but I couldn’t handle the amount of heat he put off - even as a little baby.
In contrast, he almost never sweats when awake, even when chopping firewood or sparring at karate.
There are several diseases that cause night sweats. Malaria, TB, some cancers, rabbit fever (undulant fever) as well as some obscure, tropical diseases. All of these have other symptoms.
Any febrile illness can cause night sweats, when one’s fever comes down at night.
Menopause is probably the most common cause of night sweats.
And, as Earthworm Jim noted, some folks are plagued with them for no obvious reason.
Take your temperature at various times over a day, including at night. If you have a fever, see your healthcare professional.
As picunurse mentioned there are diseases that cause fever and need to be considered. In my own case, I’ve noted sweating related to nightmares. Just another thought to consider.
I have sleep apnea, and while it is not very common for me, sometimes I would wake up very sweaty. There are probably many possible reasons for night sweats, you probably would want to ask your doctor.