Longer than you’d probably be comfortable admitting

Dust “bunnies” form when hair (human + pet), lint, and fibers clump together and roll around—usually under beds, sofas, or corners where airflow pushes them. In a typical home, you might start seeing small ones after 1–2 weeks without vacuuming, especially if you have pets. Bigger, fluffier ones like the dramatic kind usually take several weeks to a couple of months of neglect in those hidden spots.

Humidity, flooring (carpet vs. tile), and how much hair is around all speed things up too.

So if you’re seeing giant dust bunnies… it’s basically your house quietly asking for help