bedtime woes

My granddaughter, who is just two, is transitioning to not napping. Some days she will need a nap, other days not. At the same time, she is starting a habit of getting out of bed multiple times at night after her mom puts her down. This habit does not seem to vary regardless of whether she has napped or not. My daughter (her mom) has tried practicing "going to bed" with her during the day, but she does not understand that this is just a practice and gets really upset when they try this. She thinks she is really being put to bed. My daughter has also tried giving small chores the next morning for every time she gets out of bed, but we are doubtful that she can make the connection between getting out of bed at night and doing chores the next day, since it's not an immediate consequence. We'd appreciate your suggestions.