more obvious things i have pointed out

Who should set their alarms for 6 a.m.: People who intend to get up at 6 a.m.

Who should not set their alarms for 6 a.m.: People who sleep next to insomniacs who are low on sleep to begin with; people who are able to merge the annoying howl of their alarm clocks with a dream about pretty birds for a solid minute; people who are not getting, and have not ever gotten out of bed before 7.
Bonus: people who can't remember how to turn off the alarm without turning on a light and looking at it even though the clock is some 5 years old. I am looking at you, and this is why you are not allowed to play with my shiny new camera.