My DD has never been a good napper. But I am going back to work soon and grandma will be taking care of DD. I've been trying to get DD to take at least one good nap a day. I will put her in the crib and she grunts and fusses for about 15 min. I sit above the head of the crib so she can't see me to make sure she is Ok. She never cries though. Just grunts, fusses and moves around a lot. Is this considered CIO?