We were on the Triumph, and my son is 6'1". He slept on the top bunk, and his feet hung off the bottom if he laid straight out. If he curled his legs up a bit he was fine. Forget about the rollaway or the sofa bed. My daughters (around 5'4") slept on both, and their feet were hanging over into my bed, I had feet in my face every morning.

!!!
They are both rather small for sleeping.