So this card doesn't seem to work as it was probably intended!
The multiplayer-only nature of the card makes it seem like it is intended for other investigators to come and wake you up when you fall asleep. In that case, the should have the added text, "Other investigators at your location can take this action." You can't wake yourself up after all (since Narcolepsy prevents you from taking actions), and as written that action cannot be used at all.