Babysitter Needed for my Children

We are looking for a great babysitter for 3 children in Deland. We would prefer a babysitter who has their own car and who does not smoke. Children are all autistic and need to be monitored accordingly, must be experienced with children with special needs and disabilities. We have a 2 story house so must be able to go up and down stairs as well. You are needed from 8:30 p.m. to about 3 a.m. to 3:30 a.m.