How are your skill points being used? Did you hunt down and kill about every other monster in the game before the island? Did you do all the quests?
To wake the guys up, you need to use the item they are dreaming about on them.
NPC's (non playable characters) that have a ? above them offer quests. Ones with an ! means you need to speak to them to progress or finish a quest.
Possibly playing the game again with the knowledge you currently have to level your character might help if you really get stuck.
