1. Is it a baby? If yes, go to 2. If no, go to 5
2. Have you paused it many times? Have you been changing the time? If yes, go to 4. If no, go to 3
3. Or you have a fake tama, or.....I don't know.....Just wait.
4. Aha! So that is why it sleeps so long! After a while, it should wake up and...