As an update, Samantha took a nap for me just fine yesterday. She laid down and let me cover her and everything. She didn't want to go to bed last night, but accepted it when we got her to the bed (and again laid down to let Dan cover her). She slept through night #2. I consider this "phase" complete. If we start having problems, I'll definitely make you hear about it, but as for now we have a big girl!