In Business class, there are toilets and galleys for each section and baby bassinet seats are at row 12. In Premium Economy class, baby bassinet seats are located at row 30. In Economy class, there are toilets in each section. Galleys are at the end of the last section.

On a standard Airbus A350-900 layout, toilets are strategically placed to serve each cabin section efficiently. Usually, there are two toilets located at the very front of the aircraft, specifically for Business Class passengers. In the middle of the plane, between the Business and Premium Economy/Economy sections, you will typically find another cluster of two to four toilets near the galley area. In the rear of the aircraft, there are usually four toilets located behind the final Economy section. A unique feature of the A350 is the inclusion of at least one extra-wide, wheelchair-accessible toilet, often located near the middle of the plane where two standard units can be converted by a flight attendant moving a partition. Always look for the green/red "Vacant/Occupied" lights on the ceiling panels above the aisles to see which one is available without having to stand in the galley.