Trance: Rather than sleep, eladrin enter a meditative state known as trance. You need to spend 4 hours in this state to gain the same benefits other races gain from taking a 6-hour extended rest. While in a trance, you are fully aware of your surroundings and notice approaching enemies and other events as normal.
The thing missing from this text is what penalty there is, if any, from exiting the trance.
Say an eladrin in a trance notices an approaching enemy (makes passive perception check, no surprise). Can he immediately exit the trance? Without penalty? Or should exiting a trance incur the same penalties as being woken from sleep?
My group has ruled no penalty. But as the eladrin, I feel a bit guilty (seems a pretty powerful perk) and wonder whether this is correct.
I've been unable to find any official - or otherwise! - clarification. How do most of you rule on this?