What is commonly used to separate sleeping units in the same building?

The correct choice highlights the use of fire partitions to effectively separate sleeping units within the same building. Fire partitions are specifically designed to help limit the spread of fire and smoke in multifamily dwellings and other structures where occupants may sleep in close proximity. They are typically constructed using fire-resistant materials and have a specific fire-resistance rating, which ensures they can withstand fire for a designated period of time.

In the context of sleeping units, maintaining occupant safety is crucial, and fire partitions play an essential role in protecting residents by forming barriers that slow the spread of fire and smoke. This is vital in buildings such as hotels, dormitories, or assisted living facilities, where individuals may be sleeping and unaware of a fire.

While options like fire barriers and smoke barriers also serve important functions in fire safety, they are generally used in different contexts. Fire barriers are often employed to create separate fire areas within a building while providing structural support, and smoke barriers are designed to control the movement of smoke throughout a building during a fire. Neither is specifically focused on the protection of sleeping areas the way fire partitions are.