How long should you wait to sleep when a room has been sanded?

After sanding a room, it's best to wait at least 24 hours before sleeping there. This allows time for dust to settle and ensures that any potentially harmful particles are minimized. Additionally, if paint or varnish has been applied after sanding, it's advisable to follow the manufacturer's recommendations for drying and curing times before reoccupying the space. Proper ventilation during this period is also important for air quality.