Nanny Needed For My Children

We are looking for a great intermittent sitter/ nanny for 1 child in Naperville. We would prefer a nanny who does not smoke, who is comfortable with pets and who is CPR certified. We have a full time nanny but desire to have another caretaker for date nights or days that the regular nanny is unavailable. Someone with a flexible schedule who is open to being contacted for last minute availability is ideal. We would prefer they come to our home and not bring their own children. Experience with infants is a must.