I have no idea how late my son would stay up reading if I let him. He does need a fair amount of sleep and does not self regulate well.

If he did self regulate better, I may let him, but I would look at a having a light source that had less of the blue light wavelengths which hamper melatonin production! wink I'm sure he would love to stay up in bed reading.... I wonder if I should try letting him.......