Well, I am doing a project on dreams. This is for my psychology class. So far I have come up with these questions:

Why do we need sleep?
Can sleep be used as a psychological tool?
What are the effects of sleep loss?
How can drugs affect sleep?
What do our dreams really mean?

I need some more though.. Not sure what else to add.
Also, I need to conduct my own primary research for this.. I'm not so sure how I am going to go about doing that because dreams are pretty personal. I was thinking of getting a group of people and having them do various skill tests like sudoku, puzzles etc and time them. Then slowly cut back the amount of sleep they get and retest them and see how their skills are...

ANY ideas or imput would be awesome.
Thank you in advance.