Yes....location is Aulani. Studios only sleep 4 there.I'm assuming this a location that only sleeps 4? AKL, BLT, CCV, OKW, SSR?
We used two twin air mattresses at Kidani but did not have the couch pulled out.
A teen who is just as big as an adult.We just left staying in an Aulani studio 2 weeks ago. There is definitely room with the sofa folded in for a twin mattress, IMO it would be tight a twin mattress, but you can probably squeeze one in. Is it for an adult or child?