Being able to sleep well is as essential to your overall health as a balanced diet and good physical activity levels. Here we highlight some trusted resources related to sleep. If you feel that we are missing an important resource, please let us know.

MIT Medical: Additional Sleep Resources—A helpful compilation of resources for people suffering from insomnia and other sleep problems. Also includes relaxation and stress reduction resources.

CDC: Sleep & Sleep Disorder Resources—A trusted list of resources categorized by General Sleep Information, Patient Organizations, and Other Resources.

National Sleep Foundation—The NSF is a nonprofit focused on supporting sleep education, research, and advocacy. Their website is full of useful sleep information.

Sleep Health Journal—The sleep health journal is put out by the National Sleep Foundation and features up to date research on sleep-related fields.

Sleep Quality Questionnaire—This is a questionnaire straight out of Arianna Huffington's book Sleep Revolution. She cites sleepio.com for this quiz.

Brain Basics: Understanding Sleep—This guide from the National Institute of Neurological Disorders and Strokes gives a good overview of many aspects of sleep.

Sleep and Sleep Disorders—The CDC gives a lot of statistics as well as basic information on sleep.