I actually haven't had a sweaty night in awhile, but last night "I sweat like a pig!" I mostly get it on my calves and behind my knees, but last night I was also sweating on my back and around my waist. What's interesting is that in spite of the sweating, I slept pretty heavy and solid and feel more rested this morning than I have in weeks. For weeks I haven't slept well at all. My son always crawls into bed with me and I've had a new puppy sleeping in her crate nearby. So all that noise and bustling about wakes me and keeps me from sleeping soundly. last night my son spent the whole night in the other room and the pup stayed quiet in her crate all night. Funny that a good nights sleep should make me sweat! What's your theory?