According to the American Sleep Association (ASA) between 50 to 70 million people have a sleep disorder. The most common types include:
Insomnia – Is difficulty falling or staying asleep.
Sleep apnea – When you are woken up because your airway is blocked and you stop breathing.
Narcolepsy – Suddenly falling asleep at any time no matter where you are.
Restless Leg Syndrome – An uncontrollable urge to move your legs while sleeping.
REM sleep disorder – When you act out your dreams as you sleep.
Ironically, NRS is not on the list. The reason for that is NRS has proven hard to define. Consequently, it has not been a routine part of the assessment of sleep in most clinical trials. In fact, it did not appear in the diagnostic criteria for sleep disorders until 1987.