I can relate to high morning readings making it harder to get up and function...........
dawn phenomenon is a natural hormonal response we all go through after long periods of fasting...........we have no food in our stomachs for energy in the morning so the body improvises by asking the liver to give up some of its glucose, the body assists even further by releasing other hormones that increase our resistance to insulin.......for diabetics this has an unwanted effect as we cant just respond to the escalating blood sugar levels....
unfortunately increasing your Lantus dose will not stop its effect, but you can attempt to reduce its severity.........
I would test the Lantus, so take it at 7 pm and have no food [carbs] till the next day............test before bed and at 3 am, and when you wake in the morning......
if your current dose is correct, then you should hold between 1-2 mmol between before bed and 3 am........
the dawn phenomenon can begin at different times but its almost always after 3 am, so this is why its wise to get a blood sugar reading at this time.....
there are some tactics to tackle the dawn phenomenon, which can have varying success rates from person to person......
having a split background dose and having a dose right before bed and then when you wake can have a good effect as the doses will overlap in terms of time, this can help drop morning levels.........
some people eat a slowly digested supper, like cheese or peanut butter so that the livers response is not as extreme as digestion will still be taking place late into the night/morning.....
for me, when on injection [now pumping], getting up early and getting food in me, was my tactic of choice, but it often failed.........
sorry for rambling on.....