Companion Care Needed For My Mother In Newtown

We need someone who can come in the evening and stay overnight. Separate bedroom is available. Their only job is to be there in case my mother gets out of bed and leaves the apartment-- it is something she has never done, but she is living where and they require this (because on one occasion she wandered off -- but that was in the daytime-- and they want to be sure she doesn't wander off at night. She is easy to be with. Preferences for a caregiver who is a non-smoker.