@VE2UWY @VeroniqueB99 Yes, those boats have a crammed little cabin in which to sleep without falling out.
And packs of dehydrated food for sustenance that is usually mixed with water from a watermaker (miniature seawater desalinator).
Which also means pooping happens. Think about that :)
The main misconception people have is that there is much rowing across an ocean. There is not. They are drifting across an ocean with the tradewinds and currents. The rowing is primarily to stay on course rather than to move the boat towards the destination - that happens more or less on its own anyways.
Its still a feat because even in good weather there is usually enough sea to get smashed around a lot in such a tiny tub.