The Camelot Inn right across the street from
Disneyland has a huge family suite
It’s glorious! Two queens and a sleeper chair in one room and a king with a pull out couch in another room. Door shut between, each room has its own thermostat
Problem: one bathroom
The Tropicana is right across the street as well and has Park View Suites.
The “living room” has a pull out couch and its OWN bathroom and the bedroom has a king and its OWN bathroom
Plus a balcony with firework views
Otherwise check the Anaheim Desert inn, many room types with separate sleeping areas and multi bathroom set ups . They actually show the floor plan of each room on their website