Sleeping

Does he check his blood sugars. It could be a problem with high or even low sugars, but it does need investigation. Hope this helps.

Tiredness can be caused by high blood sugars. There is a condition called hyperglycaemia. Early morning glucose levels are often elevated due to the "dawn phenomenon" where the liver pushes out glucose into the blood.

If he has not got a glucose meter, then he needs to get one an measure first thing. He may need to change his diet if blood sugar levels are high. Drugs like Metformin can reduce blood glucose a little, but typically don't reduce them to normal levels.

Can you get your husband to join the forum and learn from it - no prizes for poor blood sugar control I'm afraid and having other conditions such as asthma will not help.