Do you sleep with the air conditioning on?

As summer heat intensifies across Europe, many households are turning to air conditioning as a solution to cope with rising temperatures. However, experts warn that while cooling can provide relief during sleep, it might also have unintended consequences on both health and energy consumption. In Slovenia, where nearly half of households still lack air conditioning units, this issue has become increasingly relevant amid record-breaking heatwaves.

The use of air conditioners during the night can disrupt sleep patterns due to temperature fluctuations. According to experts, when room temperatures drop below a comfortable level, the body expends energy to maintain its internal warmth rather than focusing on rest. This shift can lead to fragmented sleep cycles, leaving individuals feeling tired even after several hours of sleep. The problem arises because setting the air conditioner too low in the evening—say, to 22 degrees Celsius—can result in a significant temperature drop overnight, especially if external conditions change drastically. As a result, the body may react to the cold by shivering or waking up prematurely, disrupting the deep stages of sleep essential for recovery.

In addition to temperature-related issues, air conditioning systems can contribute to other discomforts such as dryness in the air. The circulation of cooled air often leads to lower humidity levels, which can cause throat irritation, nasal congestion, and eye dryness upon waking. These symptoms are exacerbated by the presence of dust particles and allergens that circulate along with the conditioned air, potentially leading to respiratory discomfort. Moreover, the constant flow of cool air directed towards specific parts of the body, such as the neck or back, can cause muscle tension and stiffness, particularly for individuals suffering from joint or spine problems.

Energy costs associated with using air conditioners during the night should also be considered. Continuous operation of these devices increases electricity bills, and prolonged usage can reduce the lifespan of the unit itself. Experts recommend strategies to mitigate these effects, including adjusting the thermostat settings, ensuring proper ventilation before bedtime, and using timers to automatically shut off the air conditioner after a few hours of operation. Additionally, opting for lightweight bedding and considering the use of cooling mattress pads can help achieve better thermal regulation without relying solely on mechanical cooling.

Despite the challenges posed by high temperatures, the adoption of air conditioning in Slovenia remains relatively modest compared to neighboring countries. Statistics indicate that less than half of Slovenian households possess air conditioning units, a figure that has increased significantly over the past decade but still lags behind countries experiencing more frequent heatwaves. The average annual cost for cooling in Slovenia is notably lower than in some Mediterranean regions, partly due to a slightly cooler climate and lower overall energy expenditure per household.

However, as global temperatures continue to rise, the demand for effective cooling solutions is expected to grow. With projections indicating an increase in extreme weather events, the need for adaptive measures becomes ever more pressing. While current energy costs remain manageable, future trends suggest that investment in cooling technology will likely become necessary for many households seeking comfort amidst escalating temperatures.