General

• National Sleep Foundation : http://www.sleepfoundation.org
  
• Better Sleep Council : http://www.bettersleep.org/index.html
  
• National Center on Sleep Disorders Research : http://www.nhlbi.nih.gov/about/ncsdr
  
• Sleep Home Pages : http://www.sleephomepages.org
  
• Stanford University Center of Excellence for the Diagnosis and Treatment of Sleep Disorders, Sleep Well : http://www.stanford.edu/~dement
  
• Sleep Research Society (United States) (SRS) : http://www.srssleep.org
  
• National Heart, Lung and Blood Institute, Sleep Disorders : http://www.nhlbi.nih.gov/health/public/sleep
  

Sleep Apnea

• American Sleep Apnea Association : http://www.sleepapnea.org
  

Narcolepsy

• Narcolepsy Network : www.narcolepsynetwork.org
  

Restless Legs Syndrome

• Restless Legs Syndrome Foundation : http://www.rls.org
  

Traffic Safety

• Victims of Irresponsible Drowsy Drivers : http://www.voidd.com
  

Pediatric

• National Enuresis Society : http://www.peds.umn.edu/Centers/NES
  
• National Heart, Lung and Blood Institute, Garfield "Star Sleeper" : http://starsleep.nhlbi.nih.gov
  
• Teen Drivers, Fatigue : http://www.teendriving.com/fatigue.htm
  
• Smart Drivers Break for Sleep; Drowsy Driving Basics for College Students : http://www.drowsydriving.cornell.edu
  

United States

• American Academy of Sleep Medicine (AASM) : http://www.aasmnet.org
  
• Academy of Dental Sleep Medicine : http://www.dentalsleepmed.org
  
• The National Center on Sleep Disorder Research (NCSDR) : http://www.nhlbi.nih.gov/about/ncsdr
  
• Society of Light Treatment and Biological Rhythms (SLTBR) : http://www.sltbr.org
  
• Sleep Research Society (United States) (SRS) : http://www.srssleep.org