Hearing is a funny thing -- some people can and do sleep, and soundly,
in noise conditions I find intolerable: Causes? Wind and some engine
powered generators; slapping halyards and waves; loud talking and
laughing; and thumping loud "music" until the wee hours. I have heard
it all too often and spent sleepless nights as a result.

Not all power boats, I ought to add, have loud generators or exhausts.
Not all sailboats have loud generators or exhausts. But some do -- both
power and sail.

No one in any anchorage is exempt from keeping "quiet" after, say, 2200
hrs -- no banging on pots or skillets to loosen food for overboard
disposal; no drunken or sober loud talking or laughing, or loud music
or TV, in the cockpit or on deck; no unsecured halyards or any other
intrusive noise source, including horns and bells. I have heard them
all.

I have sometimes wished my hearing was far less sensitive than it is.

I once left my own boat when the wind had it pinned tightly against a
piling and the fender outside my cabin was sqeaking intermittenly and
loudly. I took a blanket and pillow and slept in the grass some
distance away. Earplugs do not work. Pillows over the head do not work.
QUIET WORKS.