My 4 yr old gets up WAY too early in the morning between 4 and 5am.  In turn he wakes my husband, me, and his brother up.  He is going from the minute he gets up till bed time.  He is clearly exhausted by noon time however, he won't take a nap.  This is a daily battle for me.  Because he won't take a nap he becomes a bear to deal with in the afternoon.... I am completely at my witts end.  I don't know how to convince him that he needs a nap.  Please help!