It's 4:45 AM, I have a class at 9:30, and I'm not tired....

[SmileyBoy]

Should I just stay awake??

I'm thinking I probably should, because today is gonna be really busy for me. I figure I just drink some more caffeine and get through the day, then go to sleep at 8:00pm tonight.

[KitchenWitch]

1. stay up

You will be better off, less groggy, less crabby and you will catch a second wind.

[SmileyBoy]

3. Exactly, that's what I'm thinking.

If I go to sleep, I'm bound to sleep in and miss all my classes.

I'm going to bed really early tonight anyway.

[ffm172]

2. how tired are you?

because if you only sleep for an hour or two you will be more tired than if you don't sleep at all.

[SmileyBoy]

4. I'm not really tired right now.

I might hit a wall later today (usually in my Arch. History lecture), but I'll catch a 2nd Wind.

[d_b]

5. Bleh

Hate it when that happens.

[tjwmason]

6. Drink water with the coffee (or other caffeine source)

Caffeine can make you less able to concentrate by its diuretic effect. If you become even a tiny bit dehydrated (so one's body doesn't even feel it) your concentration ability can drop dramatically.