I'm in this camp and it sucks. If I have a full size cup of coffee at 5am, my sleep will suffer. Otherwise fit, healthy dude in my 40s, but have the caffeine to

I'm in this camp and it sucks. If I have a full size cup of coffee at 5am, my sleep will suffer. Otherwise fit, healthy dude in my 40s, but have the caffeine tolerance of a toddler.