The last week I have been waking up in middle of night drenched in sweat. What could be causing this. Should I worry? Soakin wet! Thanks...

It is concerning... Night sweats often occcur when one has a fever and the body goes through shivering or sweating as a way of cooling the body and bring down the fever. Going on for a week, the likeliest cause is an infection. Where: urinary tract, lungs, prostate in males, sinuses, viral illness; or is it a drug reaction. A careful history and physical, possibly urine and blood testing: c ur gp--best & least $$.