No sleep

My brother and I have been on somewhat short sleep rations while my father has been in the hospital. I never have functioned very well under those conditions. I would be curious what all effects are caused by lack of sleep. I remember the night before my oldest son was born that my relatives and I tried to do a 24-hour relay at the track at Arkansas Tech (we finally had to give it up). On the drive up Interstate 40 to Fort Smith I was so exhausted that I was seeing things running across the road.