although there is a massive amount of flat space under the deck of my 25,I wouldn't really call it a cuddy cabin.head space varies from about 36 inches at the dash to about 26 at the front bulk head.sleeping would be no problem but the headache form sitting up quickly when you wake up is a *****.Fine for the occasional overnighter but as a weekend camper,I would have to say NO.There is no cabin door,very little head space requiring crawling in and out.You cannot sit up under the deck unless you happen to be about 3 feet tall
As far as rough water handling,what do you consider rough.It eats up 2 to 3 foot wind chop like nothing.In a fall poker run on a large lake last year,waves were 4 to 6 feet,steep and erratic,no real pattern.the boat did not like it at all.I was spending more time off the stick than on,no matter how I trimmed or throttled,it was just bow launch after bow launch.It is definately an awsome lake boat,just not a "Great Lakes" boat.
I would compare it to driving a water born corvette where as your current ride,much like my power play was like driving a suv on steroids.
Would I go back to a mid size V hull? NOPE,not gonna happen unless I move to a place where ocean or Great Lake boating is the only option.
I hope this answers some of your questions.