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  2. Hypnic jerk - Wikipedia

    en.wikipedia.org/wiki/Hypnic_jerk

    A hypnic jerk, hypnagogic jerk, sleep start, sleep twitch, myoclonic jerk, or night start is a brief and sudden involuntary contraction of the muscles of the body which occurs when a person is beginning to fall asleep, often causing the person to jump and awaken suddenly for a moment.

  3. Hypersomnia - Wikipedia

    en.wikipedia.org/wiki/Hypersomnia

    The dosage is started at 100 mg per day, and then slowly increased to 400 mg per day. [55] In general, patients with hypersomnia or excessive sleepiness should only go to bed to sleep or for sexual activity. [56] All other activities, such as eating or watching television, should be done elsewhere. [56]

  4. Parasomnia - Wikipedia

    en.wikipedia.org/wiki/Parasomnia

    Recurrent isolated sleep paralysis is an inability to perform voluntary movements at sleep onset, or upon waking from sleep. [22] Although the affected individual is conscious and recall is present, the person is not able to speak or move. However, respiration remains unimpaired. [22] The episodes last seconds to minutes and diminish ...

  5. Myoclonus - Wikipedia

    en.wikipedia.org/wiki/Myoclonus

    Myoclonus is a brief, involuntary, irregular (lacking rhythm) twitching of a muscle, a joint, or a group of muscles, different from clonus, which is rhythmic or regular.. Myoclonus (myo-"muscle", clonus "spasm") describes a medical sign and, generally, is not a diagnosis of a dis

  6. Excessive daytime sleepiness - Wikipedia

    en.wikipedia.org/wiki/Excessive_daytime_sleepiness

    EDS can be a symptom of a number of factors and disorders. Specialists in sleep medicine are trained to diagnose them. Some are: Insufficient quality or quantity of night time sleep [5] Obstructive sleep apnea [6] Misalignments of the body's circadian pacemaker with the environment (e.g., jet lag, shift work, or other circadian rhythm sleep ...

  7. Tremor - Wikipedia

    en.wikipedia.org/wiki/Tremor

    Tremor can also be caused by lack of sleep, lack of vitamins, or increased stress. [11] [12] Deficiencies of magnesium and thiamine [13] have also been known to cause tremor or shaking, which resolves when the deficiency is corrected. [14] Tremors in animals can also be caused by some spider bites, e.g. the redback spider of Australia. [15]

  8. Night terror - Wikipedia

    en.wikipedia.org/wiki/Night_terror

    Night terror, also called sleep terror, is a sleep disorder causing feelings of panic or dread and typically occurring during the first hours of stage 3–4 non-rapid eye movement (NREM) sleep [1] and lasting for 1 to 10 minutes. [2]

  9. Rhythmic movement disorder - Wikipedia

    en.wikipedia.org/wiki/Rhythmic_movement_disorder

    Some cases have been reported on rhythmic movements during wakeful activities like driving. When occurring in sleep, RMD episodes are more likely to onset during non-REM, stage 2 sleep. Roughly 46% of sleep-RMD episodes occur only in non-REM sleep; 30% in non-REM and REM; and only 24% strictly in REM sleep. [12]