I let them sleep when they can because many mornings they are up with activities and sports. Also because I'll admit, I love to sleep in. I would rather stay up late at night when I get a second wind and sleep longer in the morning. Ours don't really have a bedtime in the summer. We just all go upstairs to bed at the same time after we say prayers together. During the school year that's 9pm, during the summer it has been 10pm or sometimes later. We all usually take a book upstairs and once they are tucked in they will read for however long. I dont care, I'm just thrilled they are reading.
"People are made for happiness. Rightly then, you thirst for happiness. Christ has the answer to this desire of yours. But he asks you to trust him." -St. John Paul II