Recent research confirms that sleep is an important factor in children's risk for diabetes, and that children need far more sleep than adults. Even at eight hours a night, children were at increased risk of obesity and insulin resistance when compared to those who slept up to 12 hours or more. Babies have improved recall after napping, suggesting sleep plays an important role in memory solidification. Amyloid plaques, common in Alzheimer's disease, also build up more quickly when you're sleep deprived.