Power mode control in a multi-memory device based on queue length

Methods, systems, and devices for power mode control in a multi-memory device are described. An apparatus may include a non-volatile memory and a volatile memory. The apparatus may operate the volatile memory in a first power mode and the non-volatile memory in a second power mode. The apparatus may transition the volatile memory from the first power mode to a third power mode based on a power mode command from a host device. The apparatus may transition the non-volatile memory from the second power mode to a fourth power mode that consumes less power than the second power mode irrespective of the command from the host device and based on a quantity of queued commands for the non-volatile memory being less than a threshold quantity.