The AKV Kidani and BLT 1BRs are ideal for five with 2 separate bathrooms, and for the fifth a twin sized pull-out chair in the living room. AKV Jambo (other than value) and OKW 1BRs have the chair but not the extra bathroom. VGF and Riviera 1BRs have a Murphy bed that pulls out of a cabinet to sleep a fifth, which is smaller than those pull-out chairs at Kidani and BLT. BCV, BRV, BWV, and SSR allow 5 in a 1BR but there are sleeping spaces for only four and thus you must bring your own bedding for a fifth. CCV 1BRs do not allow a fifth.
The BWV, BCV, BRV, VGF, and Poly studios have that pull-out Murphy bed from the cabinet and sleep 5. Same for the Riviera studios, except for the Tower studios which are for only 2. BLT, AKV (both Jambo and Kidani), SSR, and OKW allow 4 in a studio.
For all of the above, in addition to the number allowed, you can also have a child under 3 sleeping in a provided bed that looks somewhat like a small playpen.