Hi, yes it does I need much more in the morning than I would in the evening.
If I wake up with say bloods of 6.0 I'll take 4 units of Humalog. That would seem massive for some people (but I'm weird...) and that will cover me.
Essentially, I have to correct for the dawn phenomenon and luckily I can do that as it is happening. If I don't take any bolus my bloods will rise to the teens on just the basal.
No porridge or muesli for me in the morning!
Best
Dillinger