To sleep or not to sleep

Leo has been on a sleep strike for us for the past week. It has been really hard to put him to bed or get him to nap. However, he will go down for anyone besides "mama" and "daddy" - our babysitter Michela and Tara have had no problem. He's so tired from his antics that he has been taking really long naps during the day. Here he is sleeping even after Tara has opened the curtains and brought Isabel in to wake him up!