Overview

• Meteorologists define a Tropennacht as any night when temperatures don’t fall below 20 °C, and forecasts predict these conditions will persist in many regions of Germany
• Sleep experts recommend 'sleep divorce' during tropical nights to improve air circulation and reduce mutual heat generation
• Ventilation should be limited to early mornings and evenings when outdoor air is cooler than inside, with windows and thermal blinds kept closed during the hottest hours
• Using light, breathable bedding and clothing made from materials like linen or cotton and placing cold water bottles or cooling packs at the feet can enhance nighttime comfort
• Prof. Dr. Martin Scherer advises drinking 2.5–3 liters of water daily and avoiding strenuous activity in midday heat to prevent dehydration and heat-related strain