V-Berth or if the mirror is in place "the forward sexual observation room"I'm 6'1" tall, slept like a baby in the V berth... both quarter berths were Ok as well tighter but doable.... The mind-numbing part of the boat is the 5'8" max height below Just high enough that you feel it could have spared 4 inches. Just low enough to remind you that its still a small boat (despite its weight).
I owned my S2 7.9 for 2 years... I'm sailing a Schock Wavelength 24 now, prior boats were S2 7.9, Capri 22, and Capri 25.