I listen.

I hear no noise, either in the men's quarters, or on deck.

The sailors must all be asleep at this hour.

Here goes.
I try to open the door, and find it is bolted on the outside, as I might have expected.
I must give up the attempt, which, after all, had small chance of success.
The best thing I can do, is to go to sleep, for I am weary of mind, if not of body.

I am restless and racked by conflicting thoughts, and apprehensions of I know not what.