The wording of the card suggests that the victim CAN commit skills while asleep, which is... interesting. Fits the cycle thematically, too... you're asleep but still helping your friends from the Dreamworld.
Revelation - Put Narcolepsy into play in your threat area.
You cannot take actions, trigger abilities, or play cards.
: "Wake up!" Discard Narcolepsy.
Forced - After you take damage or horror: Discard Narcolepsy.
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.