Products that create an ideal sleep environment (dark and quiet): marpac and sound oasis sound conditioners, white noise machines, sleep masks, earplugs, blackout blinds, and light therapy products
http://www.thecompletesleeper.com/
Outlines the effects of sleep deprivation and offers solutions to cure insomnia.
http://www.relax-and-sleep.com/
Blog containing information about sleep and sleep related products.
http://www.likeababy.com/
Offers an overview on sleep disorders, includes types, effects, medication and studies carried out.
http://www.lostslumber.com/
Discusses the types of disorders, and how anxiety and diet may influence rest. Suggests keeping a daily record, when to see a doctor, and taking a polysomnography test (sleep study).
http://www.about-sleep-disorders.com/
Information on sleep, the importance of sleep for health, and how to get restful sleep.
http://www.healingdaily.com/exercise/sleep.htm
Discusses the symptoms, including a lack of energy, fatigue and exhaustion. Explains how much rest a person needs.
http://www.sleep-deprivation.com/