Sleep disorders are more common than you think and include a range of problems — from night terror to narcolepsy — and affect millions of Americans. These disorders are very prevalent depending on your age group. According to Wikipedia, here are 18 Common Sleep Disorders that have gone undiagnosed with many Americans.
Primary insomnia: Chronic difficulty in falling asleep and/or maintaining sleep. One must be suffering for more than 4 weeks to be diagnosed with chronic insomnia.
Bruxism: Involuntarily grinding or clenching of the teeth while sleeping.
Delayed sleep phase syndrome (DSPS): The inability to awaken and fall asleep at socially acceptable times but no problem with sleep maintenance, a disorder of circadian rhythms.
Hypopnea syndrome: Abnormally shallow breathing or slow respiratory rate while sleeping.
Narcolepsy: Excessive daytime sleepiness (EDS) frequently resulting in falling asleep spontaneously and unwillingly at inappropriate times. Also often associated with cataplexy, a sudden weakness in the motor muscles that can result in collapse to the floor.
Idiopathic hypersomnia: a primary, neurologic hypersomnia, which shares many similarities with narcolepsy.
Night terror: Also known as pavor nocturnus, sleep terror disorder: abrupt awakening from sleep with behavior consistent with terror.
Parasomnias: Disruptive sleep-related events involving inappropriate actions during sleep; sleep walking and night-terrors are examples.
Periodic limb movement disorder (PLMD): Also known as nocturnal myoclonus. This disorder is the sudden involuntary movement of arms and/or legs during sleep, for example kicking the legs.
Rapid eye movement behavior disorder (RBD): Acting out violent or dramatic dreams while in REM sleep, sometimes injuring bed partner or self (REM sleep disorder or RSD)
Restless legs syndrome (RLS): An irresistible urge to move legs. RLS sufferers often also have PLMD.
Situational circadian rhythm sleep disorders: shift work sleep disorder (SWSD) and jet lag.
Sleep apnea, obstructive sleep apnea: Obstruction of the airway during sleep, causing lack of sufficient deep sleep, often accompanied by snoring. Other forms of sleep apnea are less common. When air is blocked from entering into the lungs, the individual unconsciously gasps for air and sleep is disturbed. Stops of breathing of at least ten seconds, 30 times within seven hours of sleep, classifies as apnea.
Sleep paralysis: is characterized by temporary paralysis of the body shortly before or after sleep. Sleep paralysis may be accompanied by visual, auditory or tactile hallucinations. Not a disorder unless severe.
Sleepwalking or somnambulism: Engaging in activities that are normally associated with wakefulness (such as eating or dressing), which may include walking, without the conscious knowledge of the subject.
Nocturia: A frequent need to get up and go to the bathroom to urinate at night. It differs from Enuresis, or bed-wetting, in which the person does not arouse from sleep, but the bladder nevertheless empties.
Somniphobia: A cause of sleep deprivation. Somniphobia is a dread/ fear of falling asleep or going to bed. Signs of illness include anxiety and panic attacks during attempts to sleep and before it.
Kleine-Levin syndrome: “Sleeping Beauty” syndrome is a neurological disorder characterized by recurring periods of excessive amounts of sleeping and eating.