Most common sleeping disorders

The most common sleeping disorders are:

• bruxism (involuntarily grinding teeth while sleeping),
• delayed sleep phase syndrome (DSPS) (inability to wake up and fall asleep at the desired times),
• hypopnea syndrome (abnormally shallow breathing or slow respiratory rate while sleeping),
• insomnia (inability to fall asleep and/or remain asleep for a reasonable amount of time),
• jet lag (temporary condition resulting in out of sync sleep patterns as a result of rapidly traveling across multiple time zones),
• narcolepsy (falling asleep spontaneously and unwillingly),
• night/sleep terror disorder (abrupt awakening from sleep with behavior consistent with terror),
• parasomnias (a variety of disruptive sleep-related events),
• periodic limb movement disorder (PLMD) (involuntary movement of arms and/or legs during sleep),
• rapid eye movement behavior disorder (RBD) (acting out violent or dramatic dreams while in REM sleep),
• restless legs syndrome (RLS) (irresistible urge to move legs while sleeping),
• shift work sleep disorder (SWSD),
• sleep apnea (obstruction of the airway during sleep),
• sleep paralysis (conscious paralysis upon waking or falling asleep),
• sleepwalking or somnambulism (engaging in activities that are normally associated with wakefulness, including walking, eating, dressing without the conscious knowledge of the subject),
• snoring (loud breathing patterns while sleeping).
  

You can find a more detailed classification of sleeping disorders and their descriptions at the Sleep Education website.