If the doctor is considering breathing-related sleep disorders, myoclonus, or narcolepsy as possible diagnoses, he or she may ask the patient to be tested in a sleep laboratory or at home with portable instruments.
The major observable difference between the jerking of benign sleep myoclonus and an actual seizure is that the former will stop as soon as the affected infant is woken up.
However, according to a study published in the British Medical Journal, benign sleep myoclonus usually resolves itself by the time a child is three months old.
Some involuntary muscle twitching is normal as a person falls asleep, and this type of jerking is called hypnagogic myoclonus.
Unlike tics, myoclonus cannot be controlled even briefly.
Myoclonus epilepsy with ragged-red fibers (MERRF).