In the World Wide Web there are a lot of sites about sleep apnea and other sleep disorders that may interest you.
The following websites are recommended by me and contain useful informations about specific sleep disorders:
Hope2Sleep - Support for Sleep Apnoea Sufferers and CPAP Comfort Products.
American Sleep Apnea Association - The ASAA is a non-profit organization dedicated to reducing injury, disability, and death from sleep apnea and to enhancing the well-being of those affected by this common disorder.
The Green Living Expert - Includes information about cleanness and wellness in the house, such as cleaning, clean air, water quality, good sleep, stress relief, pain management using natural ways (non toxic, non chemicals etc.)
Better-sleep-better-life.com - A user-friendly guide to getting a better night's sleep. Lots of free information, tips and advice on sleep disorders (such as insomnia, sleep apnea, narcolepsy...) the benefits of sleep, sleep habits, sleep aids, natural sleep remedies, D-I-Y insomnia test and much more. Sleep better tonight and you'll enjoy tomorrow a whole lot more!
Headache-Adviser.com - Different types of headaches have different symptoms. At Headache-Adviser.com you will find excellent information about migraine, tension and cluster headaches. In addition, hormone headaches and child migraine are reviewed by a practicing headache specialist from a large neurology group.
Best Rated Mattress - Discover what is the best mattress brand, the most popular type of mattress and how to find a mattess that will give you a fantastic night's sleep.