I'm the same with coffee! Especially on mornings I have to get up early. I think it's something to do with taking charge of your morning, even if you're being forced to do things you don't want to do necessarily, you're doing things your way. Lovely! :)
Hehe yes, my husband tells me it's the same with coffee, in fact he has a whole ritual to drink it. Especially when he wakes up with allergies, he takes the time to drink his coffee calmly, because coffee for some reason calms his allergies.
It's true what you say about taking charge of your morning, it's something like: "well I have to wake up early, but I'm going to decide how I'm going to do it".