Ceative
I agree with moonstone, the DAFNE figures should incorparate a saftey net to limited and prevent hypo's..
For T1's you need to have a BG of 4mmol/l on waking if it's this low though there is a danger of a night-time hypo if it happens on frequent bases, it would be wise to carry out a BG around 2-3am to see how low this point is...
I would dismiss what Hanna has said, she is a type 2 diabetic, doesn't know what she is really talking about when it comes to T1 diabetes or how different factors need to be taken into consideration when you are over-seeing some-one else diabetic control, which is a lot more difficult than dealing with your own..
It seems that your wife is doing a grand job
If hypo occurs or if she supects that dad might be having one (as until she see him have his first one she might not know the signs he shows) do an exta BG test to find out what his levels are.. If hypo under 4mmol/l then give 15g of fast acting carbs, wait 15 mins, check BG to see if he's levels have returned to normal if not repeat...
Here depending on what insulin reginme he's using, if it's 2 injections a day then he will need a carby snack, a sandwhich bananna etc..
If on 4 jabs a day, then you can look at to when he's next meal is due, if it's due with an hour then shouldn't need a carb snack (but need to keep on on him) if longer give a small snack, a bannana etc to tie him over until his next meal..