What is mouse house called?

A mouse house is commonly referred to as a "nest." In the wild, mice build nests using various materials like grass, leaves, and shredded paper to create a safe and warm environment for their young. In domestic settings, a mouse house may also refer to any small, enclosed space where mice take shelter, such as walls, attics, or basements. Additionally, in a pet context, it can refer to a small habitat or enclosure designed for pet mice.