Can 280 stay at night? The question seems to be asking if a certain number or name can stay somewhere during the night. A specific answer requires more contextual information. If “280” refers to a room number, equipment number, or other specific identifier, then whether you can stay overnight depends on the circumstances and regulations. Generally, if it is a public facility or residence, it is generally allowed to be used during the day and night, but there may be restrictions on specific times. Please judge based on the actual situation or relevant instructions.