why is it that I sweat when I sleep?
820316
so many reasons from hormones, medical conditions, to many covers bedroom to warm! age! see your doctor u may need blood tests if this continues!
250510
Sounds like a condition called Hyperhidrosis or excessive sweating.  It most commonly occurs during times of anxiety, stress or when your sympathetic nervous system is stimulated i.e. fight or flight or adrenaline rushes. You can treat this condition with topicals such as aluminum chloride (Drysol) or antiperspirants.  There are other treatments which include orals, injections and even surgery.  A dermatologist would be able to help you with this situation.  Best of luck!
709288
the air is already saturated with moisture and cant hold much more, so the sweat on your skin stays instead of evaporating which is a natural cooling process
876538
I'm assuming that you sleep with a comforter over you. If you do, your body recognizes the warmth and automatically becaomes more relaxed, just as if you were laying in bed. Try drinking an ice cold glass of water or something else. This should help. Nothing to worry about. =)
576507
Its just your body's reaction to arousal (by that I mean stress or excitement) If you sweat excessively, try a product called DRICLOR, you should be able to get it in your local chemist. (you apply it the night before and it completely stops you from sweating - armpit area anyway)
1057383
blood circulation slows down when your body is at rest or sleeping
1051219
Maybe you are overweight\nHave thick hair (90% of your body heat flows through the top of your head)\nHave diabetes (one symptom is sweating)
1118154
Sweating is the body's cooling mechanism.  You burn calories whenever your body is using any energy at all, including when you're just sitting.  So sweating does burn calories, but not a significant amount at all.  The reason you lose weight if you sweat a lot is usually that you've lost water, which is a dangerous way to lose weight and is quite temporary.  If you are working out and sweating, that is when you are burning a significant amount of calories.
1110025
Do you have a blanket on your bed?  Try sleeping under just a sheet.  If that doesn't work (or you've already tried that) there could be an underlying medical problem.  Hormonal fluctuations (such as PMS, menopause, or the less common male version andropause), diabetes, and sleep apnea can all cause this.  For diabetes symptoms, check out http://www.diabetes.org/diabetes-symptoms.jsp.  For sleep apnea symptoms, check out http://www.sleepdisorderchannel.com/osa/.  It could also be something more simple like exercising too close to bedtime.
1013379
Your skin has two types of sweat glands: eccrine glands and apocrine glands. Eccrine glands occur over most of your body and open directly onto the surface of your skin. Apocrine glands develop in areas abundant in hair follicles, such as your scalp, underarms and genitals.\n\nYou have between 2 million and 5 million eccrine sweat glands. When your body temperature rises, your autonomic nervous system stimulates these glands to secrete fluid onto the surface of your skin, where it cools your body as it evaporates. This fluid (perspiration) is composed mainly of water and salt (sodium chloride) and contains trace amounts of other electrolytes — substances that help regulate the balance of fluids in your body.\n\nApocrine glands, on the other hand, secrete a fatty sweat directly into the tubule of the gland. When you're under emotional stress, the wall of the tubule contracts and the sweat is pushed to the surface of your skin where bacteria begin breaking it down. Most often, it's the bacterial breakdown of apocrine sweat that causes a strong odor.\n\nWith that being said, if bacteria can breakdown sweat, then scientists should be able to do it as well.\n\nHow this is done, I don't know but here are a couple links regarding synthetic sweat.
521031
it all has to do with the amount of body fat that u have on ur body, the body's sweat glands job is to cool your body down.. there are some medication thats help uneccesary sweat...
537972
Excessive sweating is called Hyperhidrosis. There can be many reasons for it, but the most common is a problem with the thyroid. \nAnother problem that sounds like the one that you are having is menopause. You did not tell me your age so I can not say for sure, but either way you need to go to your doctor and get a full work up.
217267
The same reason you sweat after exercise. A lot of energy is used during intercourse.
909529
Fluids do not make you sweat.When you sweat you are losing salt and can become dehydrated.Go to see a doctor.Pediolite for children can help   with the dehydration,and so can gatorade.
666010
Definitely!!!  Your body's energy level is low when you're sleepy therefore you can't be kept as warm!  This ALWAYS happens to me!
1115761
It could be hormonal, perimenopause which is the time before menopause and some women have drastic night sweats during that time.  It could also be a thyroid problem, hypothyroidism makes you feel hot and sweat alot more than normal.    Have you been tested for thyroid, diabetes, and/or lupus?  Autoimmune problems can cause the sweating too.
288336
Probably overactive sweat glands. Happens to me all the time. It's not a problem, just kind of embarrassing.