Hi Helen,
I am 55, have no ida whether I am post or not (I had a quadruple period in October after nothing for 18 months...), and wake up at least once every night. Lately, I have been awakening drenched in sweat and freezing at the same time.
I see a psychiatrist for both medicine and talk therapy. One of the best pieces of advice he gave me over my long, long haul was not to lile in bed awake. He recommended that I get up and do something, anything. Read, watch television, do stretching exercises, whatever. He says that lying in bed focusing on being awake is entirely counter-productive. I have found that he is soooo right.
I have made lasagna and baked an applesauce cake in the middle of the night. Somehow, I always fall back to sleep again.
I hope your issue is fleeting. Please let us all know how you are doing.
Smiles,
Marcy