Night and Day

Random thought, i don't think anyone can say if he/she is a morning or night person anymore. Why?

Specimen A: sleeps at 10pm, wakes up at 6am
Specimen B: sleeps at 2am, wakes up at 9am
Specimen C: sleeps at 3am, wakes up at 12pm
Specimen D: sleeps at 5am, wakes up at 3pm
Specimen E: wakes up at 10pm

ok considering specimen A, you might consider A a morning person because he wakes up at 6am. What about B? I mean B sleeps at night, just not as early, and he wakes up at 9am which is also in the 'morning category isnt it? but shud we call B a morning person? B wakes up 3 hours after A, does this make A more 'morning' than B? Then concerning C, sleeps at night but wakes up at noon, so what is C? A noon person? D would probably be called a night person la, he goes to sleep when the morning people are getting up. E? I really don't know what type of person is E, i'm not sure if E is even a person haha, but since E would probably be active the whole night, E must be more 'night' than D hahaha, ok this is getting confusing i'm gonna stop here and let whoever is as lifeless as me read it, thank you for being lifeless enough to support my blog(i would giv u a star but i dont know how to put star emoticon) :)

btw if anyone is wondering which specimen i come under it would probably be B