How do I turn off auto-empty on my robot vacuum so it doesn't wake me up at night?

Yes — most robot vacuums let you disable the auto-empty function in the settings or through a Do Not Disturb schedule. On Roomba, find it under “Do Not Disturb” or “Auto-Empty” settings; Roborock and Dreame call it “Carpet Boost” or “Empty Dustbin” in the cleaning mode. Set a schedule that turns off auto-empty during your sleep hours, or toggle it off manually before a nighttime run. The vacuum will hold the dirt until you empty it manually or DND ends — most bots can go two or three runs before the bin is full.