Is it okay to sleep in a house with mice?

It is generally not ideal to sleep in a house with mice, but a single mouse for one night is unlikely to cause immediate serious harm if you take precautions. The main concerns with mice in the house are health and safety risks. Mice can carry diseases like hantavirus, salmonella, and leptospirosis through their droppings, urine, and saliva, which can contaminate surfaces and food and become airborne when disturbed. They can also bring in parasites like fleas, ticks, and mites. Mice chew on wires, which can create a fire hazard, and they can contaminate your kitchen. If you must sleep in a house with mice, make sure food is sealed in airtight containers, wash hands before eating, avoid sleeping directly on the floor, vacuum and disinfect areas with droppings using gloves and a mask, and set traps to reduce the population. For people with asthma or allergies, mouse droppings and dander can trigger symptoms. Long-term cohabitation is not okay because mice breed very quickly and an infestation can grow from a few to dozens in weeks. It is best to seal entry points, clean thoroughly, and call pest control promptly rather than ignoring them.