Your body does change as you sleep. My wife explained the mechanism/reason when she was in school, but I can't remember what it was. I also occasionally feel the opposite, hot/cold, when I get up from what I felt when I went to bed, but I don't sleep walk. I read an article about sleep walking on the BBC earlier this year. Some people sleep walk, sleep cook and eat, sleep drive and even sleep sex (I think I dated her once

).
Are you feeling stressed lately? Do you think you have a history of nocturnal activity?
Do you have a programmable thermostat that you could set to change the temp at night?
__________________
Steve
'08 Boxster RS60 Spyder #0099/1960
- never named a car before, but this is Charlotte.
'88 targa

SOLD 2004 - gone but not forgotten