For the knowledge of our esteemed customer:
Periodic limb movements of sleep
(PLMS), previously known as nocturnal myoclonus
, consists of stereotyped, 0.5- to 5.0-s extensions of the great toe and dorsiflexion of the foot, which recur every 20–40 s during NREM sleep, in episodes lasting from minutes to hours, as documented by bilateral surface EMG recordings of the anterior tibialis on polysomnography. PLMS is the principal objective polysomnographic finding in 17% of patients with insomnia and 11% of those with excessive daytime somnolence. It is often unclear whether it is an incidental finding or the cause of disturbed sleep.
PLMS occurs in a wide variety of sleep disorders (including narcolepsy, sleep apnea, REM sleep behavior disorder, and various forms of insomnia) and may be associated with frequent arousals and an increased number of sleep-stage transitions. The pathophysiology
is not well understood, though individuals with high spinal transections can exhibit periodic leg movements during sleep, suggesting the existence of a spinal generator.
Treatment options include dopaminergic medications or benzodiazepines.
So I think that " hypnagogic myoclonus " would not sufficiently explain your diagnosis.