Sleep is a natural state of bodily rest observed throughout the animal kingdom. It is common to all mammals and birds, and is also seen in many reptiles, amphibians and fish.

This information will help you understand your choices, whether you share in the decision - making process or rely on your doctor's recommendation.Key points in making your ...

The National Sleep Foundation (NSF) is an independent nonprofit organization dedicated to improving public health and safety by achieving understanding of sleep and sleep disorders ...

The American Sleep Apnea Association is dedicated to reducing injury, disability and death from sleep apnea and to enhancing the well-being of those affected by this common ...

Take this quiz to help determine whether you have a sleep disorder. ... If you answer yes to any of the following questions about sleep disorder, you may be dealing with insomnia ...