Re: V berths
On our Caliber 35 LRC, I love our queen-size vee berth. It is well-ventilated with a huge hatch above, that opens the right way, plus an opening port. We have a tufted topper mattress topper, which makes it really comfortable, and sheets that tufted topper made to fit. Nice! (the berth is actually bigger than our old-fashioned double bed at home) We use the vee berth at anchor/mooring/slip.
Our aft quarter berth is roomy for one, cozy and friendly for two. At least it has good headroom.
I cannot sleep in an aft berth that has no headroom (like a lot of them).... I get claustrophobic, especially if no cross ventilation.
If rocking and rolling, of course, the midships berth is best.