天气炎热，睡觉时开窗好还是开空调好？

Group 1 - The article discusses the debate between sleeping with air conditioning versus open windows during hot summer nights, suggesting that air conditioning is generally more beneficial for health, especially for vulnerable populations like the elderly [1][3] - Recommended temperature settings for air conditioning are 22℃ to 26℃ for comfort, while at night, it is suggested to set the temperature to 28℃ for optimal comfort and energy savings [5][6] - The article highlights the importance of using air conditioning properly to avoid "air conditioning disease," which is often caused by improper usage rather than the air conditioning itself [3][6] Group 2 - It is advised to use the sleep mode on air conditioning units, which gradually increases the temperature during the night to prevent chills and save energy [7] - The article recommends positioning the air conditioning vents to blow air upwards to achieve a more even and comfortable room temperature [9] - Utilizing the dehumidification mode during humid weather can help reduce indoor humidity and save energy [10] - To combat dryness caused by prolonged air conditioning use, placing a bowl of water near the air vent can alleviate symptoms like dry eyes [11] - Regularly opening windows for ventilation is encouraged to maintain fresh indoor air and reduce harmful substances [12]