Thank you Barb135. I did recently have my thyroxine dose increased. The waking sweating was happening long before that. Also, I don't sweat any other time during the day. Whilst my TSH was within the 'normal' range on my medication I was exhibiting all the signs of being hypo thyroid...hair loss, high cholesterol, exhaustion, drooping eyelids, sore muscles, sore joints, and worse, poor cognitive abilities.