It's too hot. Can I turn on the air conditioner to sleep?

You can sleep with the air conditioner on.

However, because the doors and windows of the room are closed when the air conditioner is turned on, the indoor air quality will become very poor after a long time.

Therefore, it is suggested that when you sleep with the air conditioner on, leave a narrow gap in the room window to facilitate ventilation. In order not to catch a cold during sleep, you should raise the set temperature of the indoor unit of the air conditioner as much as possible, prepare a blanket and cover it when you feel cold at night.