Hot days can be dangerous, and warm nights can also harm health. The body needs cooler night-time hours to lose heat and recover. If a bedroom stays hot until morning, a person may sleep badly and feel tired the next day. Several hot nights can make this strain worse.
Simple steps can help. Close curtains before sunlight enters the room. Ventilate the home when the air outside becomes cooler. Drink water and check on vulnerable relatives or neighbours who live alone. A fan may help in some conditions, but people should still follow local health advice during extreme heat. Night-time cooling is part of heat protection. Planning for the hours after sunset can reduce a risk that daytime advice may miss.