How do you keep a 4 month old awake during the day? I play with her, read to her etc, but she gets tired after a couple of hours and takes two 2 hour naps during the day. Her parents say I let her sleep too much and they don't get enough sleep because of it at night. What do I do. She seems truly tired and I feel wrong keeping her awake, but I don't want to upset my bosses.