Blanket vs Sleeping Bag
No matter how big your sailing vessel, it most likely will not have standard bed shaped, bed sized bunks. When you get up around 40 feet or so, maybe!
Power boats tend to get to bed shaped bunks around 30 feet or less, but those bunks tend to be crammed into areas under cockpits and deck areas that hamper bed making. Once the bed gets at all messed up, it’s necessary to start all over. If you must have a proper bed plan on adjusting your sleeping habits and try not to sit up in bed without being sure you have clearance. I suggest you try out the sleeping quarters by at least stretching out in the bunks that you may want to use underway. As far as making whoopy, your inventiveness will be challenged as not much of anything on a boat goes unnoticed and thumping and bumping can get your nooner noticed.
My personal preference is a good sleeping bag with some extra blankets and sheets stowed in a dry area in case nature wets your bed, or heaven forbid you or sombody else gets sick in your bunk. And no matter what the size of boat you are on, mal de mer is possible.
I sleep with a sleeping bag in my forepeak. My wife is a bit more picky and prefers her blankets but I like the fact that my bedding rolls up into a small bundle nice and clean like. Good article!