Restless legs syndrome (RLS) causes a powerful urge to move your legs. It is a common condition. MedlinePlus website is ad-free.
Perhaps everything you ever wanted to know about sleep – what sleep is and what it does for you, sleep’s role in learning and memory; sleep disruptions and disorders. Find out about adenosine and melatonin. Links to help you find a sleep center and sleep medicine specialist. Updated 2011 by the US National Heart Lung & Blood Institute (NHLBI); 72 pages
MedlinePlus Medical Encyclopedia provides greater depth on sleep apnea. Addresses causes of Obstructive Sleep Apnea (OSA), symptoms, tests, treatment and more
MedlinePlus website on sleep problems and disorders. Sleep is vital to your health. Find out more about insomnia, circadian rhythm, melatonin, sleepwalking, narcolepsy and more
Physicians (MDs and DOs) and PhDs who are certified by the American Board of Sleep Medicine (ABSM) have passed the exam, and displayed a comprehensive understanding of the diagnosis and treatment of sleep disorders. This site lists diplomates by name, but no search function by city
Find an accredited Sleep Center that is also a member of the American Academy of Sleep Medicine (AASM). SleepEducation.org