I think the toddler sleep needs are pretty realistic. On average, in real life, toddlers need more sleep per night than adults. Unless someone has them take naps during the day, that sleep time is being stacked at the end of the day. In this game, toddlers generally start running for their bed when they hit yellow in energy...if you forced a toddler to get far down into the red before sleeping then it will certainly take longer to get them back to full but if you let them go to bed when they start getting sleepy, then it's fine.
