do you think a fully aware person needs to sleep?

[anagogy]

I think the more in tune with the universe some beings become, the more "waking" and "sleeping" become one.  Same goes for eating/not eating.  Everything becomes integrated.

There are some beings in 3rd density that are rumored to have stopped eating. But, in reality, they are eating, just in a more subtle way. They survive by absorbing prana.  There will always be beings, in every density, that are more in tune with the cosmos than others.  So it is not that sleep isn't necessary, or that eating is not necessary, but things begin to integrate together.