The same as everyone else on both counts.
I would sleep about 8 hours a day, but my job messes up my sleep cycle. So I usually get either less, or more than 8 during a given 24 hour day.
Growing up aspie causes you to have fewer friends which causes you be introduced to naughty things like cigarettes, drugs, sex, and rocknroll, at a slighter later age than NTs get exposed to that stuff. At 18 I probably got drunk easier than the average college guy, but my tolerence went up fast. I seem to respond to caffine, alcohol, and to other over the counter, and under the counter, drugs, pretty the same as anyone else does. Never got into tobacco use though.