There are several reasons why setting the air conditioner to 26°C at night might not be ideal:

1. Body Temperature Drops at Night

At night, your body temperature naturally drops as you sleep. If the room temperature is set to 26°C, which might feel comfortable during the day, it can feel too warm at night. This could disrupt your sleep and make you feel hot and uncomfortable.

2. Energy Consumption

Air conditioners work harder to maintain lower temperatures, especially when the outdoor temperature drops at night. Keeping the AC at a constant 26°C requires more energy, which increases electricity consumption and costs. Raising the temperature slightly, such as to 27-28°C, can reduce energy use without significantly affecting comfort.

3. Impact on Health

Cooler air at night can lead to health issues such as dry skin, throat irritation, and even respiratory problems. Prolonged exposure to cold air while sleeping can reduce the body’s resistance to colds and increase the likelihood of catching illnesses.

4. Humidity Levels

Running the AC at lower temperatures for extended periods can reduce humidity in the room, making the air too dry. This can lead to dehydration, dry eyes, and dry nasal passages, especially if the AC is set at 26°C for the entire night.

5. Sleep Disruption

A too-cold room can cause your body to shiver, leading to interrupted sleep. While 26°C might seem like a moderate setting, cooler temperatures can still be uncomfortable during the night when your body’s core temperature is lower.

Suggested Temperature for Nighttime

Most experts recommend setting the AC between 27°C to 29°C during the night, which is usually sufficient to keep you comfortable while saving energy and avoiding potential health issues.