How can restless leg syndrome cause hypersomnia?

By disrupting sleep: Patients with RLS at night can also have a disorder called periodic limb movement disorder (plmd). This condition results in repetitive leg twitches, which can fragment your sleep, making sleep non-restorative. The only way to know whether you have plmd is to do a sleep study. Talk to your physician.

RLS: Rls can cause insomnia, or it can cause frequent minor waking up spells and non restorative sleep.