Companion Care Needed For My Father In Springville

I'm looking for companion care for my father in his 90s. Duties include providing companionship and social interaction. Preferences for a caregiver who is a non-smoker. This is an overnight position. Essential duties are just to make sure he does not wander off or fall during the night and possibly assisting to bathroom. The days are flexible to accommodate the sitters schedule. The hours are also somewhat flexible preferably three or four nights a week 10 p.m. - 6 a.m. or something close to this time.