My 3.5 month old sleeps great at night. He goes to bed between 7 and 8pm, wakes once around 5am for a bottle and then sleeps until 7-8:30am. He is having the worst time napping though. I feel like he is constantly tired. For example, last night he was asleep around 7:45pm, woke at 5am for a bottle, then slept until 8:30am. He was happy and talking in his crib. By the time I changed him, got him downstairs and made a pot coffee, he was yawning again. His eyes were glassy and red and he was rubbing his face - all signs of being tired, right? but he slept for 12 hours! It makes me wonder if he is sleeping too much at night. You know how if you sleep in, you sometimes feel more tired when you wake up?