And how did you feel during that time period? Did you feel too high?
what about having almost all my lows when I’m asleep, usually between 2 - 3 in the morning??? I do take 10 units of Lantus every night at 9PM. What do you think??
A bedtime snack of protein might help, because protein takes a long time to digest, and a significant amount of it is converted to glucose, but very slowly. That bit of glucose from the protein might well cover you. A bit of cheese or some yogurt might be just the thing.
If you were on a pump, you would be able to set your basal that covers that time period lower than your usual basal. The good part of the pump is that you can make tiny, frequent adjustments, but you have to have a pretty regular pattern in order to do that.
Hoping for the best for you! 
Absolutely a different range for different people and also at different times. I have been in the 30’s and still able to treat myself, but on the other hand, I’ve been in the 50’s and needed help.
I have had it happen a number of times I have been type 1 since 1966 and on insulin pump for 4 years. My latest low was 39 while I was at work. I did not feeling it coming on at all. Just keep close eye on bg you will learn over time when you are feeling low and family and coworkers will no to. I usually don’t feel lows till they get in low 50s
I was 38 the other day. I was walking my daughter around the block. Almost didn’t make it back home. Didn’t have any sugar/supplies with me (stupid!).
I managed to get home, drink a whole bunch of OJ and ate some toast. Laid down on the couch and was ok after that, but had a wicked migraine headache that night!
I just can’t concentrate when my blood sugar is low.
My lowest ever was 28. That was in the driveway of my house watching my daughter ride her bike. I was able to treat that myself as well.
Guess I am just lucky I don’t pass out or have seizures!