excessive sweating when first falling asleep?

[Guest guest]

hello,

my son, who is now 6, has had an excessive night sweating issue since he was 4.

it seemed like it appeared almost over night two years ago. it is only when he

goes to sleep and only for the first couple of hours after falling asleep, the

rest of the night he is fine. he is fine when he goes to sleep, but as soon as

he is in a deep sleep it's like his whole body sweats over. so much so that his

hair is almost like he took a shower and when he rolls over his pillow and sheet

are dampened. sometimes he is flat out wet with sweat. has anyone heard of this?

any ideas on where to find out a cause? is this symptomatic of anything you know

of?

your help is greatly appreciated!

thank you

kim