With the arrival of heat in Portugal, it is becoming increasingly difficult to sleep without resorting to the air conditioning. In various regions of the country, especially in the south, the use of the apparatus at night becomes essential to rest. With increasing temperatures, the air conditioner command appears again, stored during the colder months.
According to the International Energy Agency (IEA), most people turn on the device in “cool” mode and define a temperature between 20 and 24 degrees. However, few users pay attention to the button with the symbol of a moon, also known as “Sleep” mode. This function can be essential to ensure a more comfortable sleep night.
How the “Sleep” mode works
According to the same source, the “Sleep” mode is designed to improve the quality of rest at night. This functionality automatically adjusts the temperature and speed of the fan, adapting to body needs while sleeping.
When activated, the “Sleep” mode gradually increases the room temperature, usually 1 to 2 ° C per hour. This process prevents air from staying cold throughout the night, which can cause discomfort or even wake the person in half of sleep.
The same source also indicates that the fan speed is progressively reduced, reducing noise in the environment and avoiding excessive air currents. This combination allows you to create a more stable and resting climate for rest.
Lower energy consumption
According to the same source, the Sleep mode also contributes to more efficient use of energy. Contrary to the constant functioning of the “cool” mode, this function reduces the load on the air conditioner compressor.
The IEE estimates that this automatic operation management can represent an energy savings of up to 20%. This reduction is particularly relevant during the most use periods when the air conditioner remains on for several hours in a row.
This savings does not only translate into less costs in the electricity invoice, but also into less environmental impact, promoting more sustainable use of energy resources.
Reduction of night discomfort
Many people avoid sleeping with the air conditioner connected for fear of waking up with a dry or cold throat. These effects are common when the device works without temperature variation throughout the night.
According to the same source, the “Sleep” mode was thought precisely to solve this kind of situations. When adjusting the temperature progressively, it is avoided that the body is exposed to cold air for too many consecutive hours.
In addition, by softening ventilation, this function contributes to a softer environment that does not dry out so much air or cause respiratory discomfort, which allows you to wake up the next day.
A button ignored by many
Despite its usefulness, the button with the moon symbol is often ignored. According to the same source, most users are unaware of the function of the “Sleep” mode or simply never experienced it.
Still, this option can make all the difference during the hottest nights. Unlike other settings, the “Sleep” mode was designed specifically to follow the sleep rhythm, without interruptions or sudden temperature changes.
According to, it is a simple but effective functionality that allows saving energy and ensuring greater night comfort. It is present in virtually all modern air conditioning commands, just a click to begin to benefit from its advantages.
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