POR (Port Orleans Riverside) in AB section has trundle bed they will sleep 5 -
this is 2 double beds plus the trundle bed - one bathroom
FW cabins is a better choice (my opinion) - 1 double bed - bunk beds and a murphy bed in the livingroom - it has a kitchen so you can save money by not eating out as much.
CSR has suites that sleep 5
Polyn, Cont, GF, BC, YC, BWI has 2 queen beds and a day bed - the one at the Polyn and Cont is the size of a twin bed - the others are much smaller.
the DVC resorts have a 2-bedroom villa - this is expensive - but if you can afford it (you can save some money renting from a dVC member but they are still expensive - OKW is your
best buy here)
you do get 2 bathrooms, a full kitchen, with a washer and dryer at these. a king bed in the master, a queen sleeper sofa in the livingroom and depending upon which resort you choose either a queen bed and a double sleeper sofa - or 2 queens (OKW only has 2 queens)
go to the DVC rental/trade board on this site for more information about renting a DVC resort.