heh wierdness..

Gaara just might be an insomniac because of the spirit/demon dont you think?.. He doesnt sleep cause he's afraid of Shukaku, the more sleep one possed by it has the more shukaku can take over. The deeper the host sleeps the more power Shukaku will gain and so on and so on until he has consumed the host and is free. Hence why Gama bunta wanted Naruto to hit Gaara hard when he fakesleepnojutsued so Shukaku wouldnt get full footing...