39min of rem sleep is not enough for any human.

My Grandad has type 1 diabetes he treats it with a strict routine of eating at the same time every day and injecting at the same time, and testing only if he feels low.

The article I read was a parent in panic, and my only advice could possibly be to try and chill out, which is almost impossible as its your son and you would want to do as much as you can. Which is why I felt empathy to the poster, I could feel his anxiety.