A nap on the boat was his plan, but Wolfe had underestimated the nature of [Eternal Vigilance] as a spell. Though he closed his eyes and leaned back in the seat to rest, once the exhaustion passed, he no longer felt any need for actual sleep.
Meditating for the duration of the trip refreshed his mind, but his body felt no lingering weariness, and he was ready to go again as soon as the boat landed.
[Eternal Vigilance] didn't just allow the user to recreate a destroyed body, it allowed the user to be eternally on watch over whatever it was that they deemed important. For the creator of the spell, that had seemed to be the happenings of the world, though he chose not to interfere in them, just observe them, but he did that very well.
For Wolfe, it meant that unless he was distracted or meditating, he could always be alert for threats, and no longer needed the long downtimes that were more normal and natural for the human or in his case, Magi, body.