Doctors and researchers are working to find ways to do away with sleep and still have the body refreshed and operational. Interestingly, doctors are working to find ways to override the body’s clock. I myself think that this is ridiculous in that the times to sleep are typically times that our bodies relieve stress. Now if they are able to find different medications that are able to clear the body of toxins and other stress inducing chemicals, by all means, go ahead.
The only other question that would need to be dealt with would be the aspect of dreams, would we basically become robots without a time to dream, always on?