Does leaving the computer on all night affect sleep?

Nighttime sleep is an important stage for our bodies to recover after a tiring day of work. It may surprise many people that turning on the computer is even worse than having a smartphone next to them while sleeping. Here are some reasons why.

The RGB lights coming from the computer are annoying.

Light makes it difficult to sleep

The first aspect is the lighting, especially the RGB light strip. It only performs aesthetics without any actual function. Meanwhile, RGB light will affect sleep.

Humans are biologically programmed to sleep when it is dark and wake up when it is light. Meanwhile, RGB lighting at night makes it harder for people to fall asleep. Moreover, it makes the quality of sleep worse, especially if using RGB color changing effects. All of this makes the body rest improperly, leading to incomplete sleep.

Fan noise

Most computers have fans to help dissipate heat. At the very least, you’ll have a pair of fans: one for the power supply (PSU) and one for the CPU heatsink. Modern graphics cards often shut down their cooling when idle by switching to 0dB mode. Other machines have multiple fans, with 3-6 being the norm.

Let’s say they are all running and spinning at minimum speed. Even if they seem to be quiet, people can actually hear them. Having something going on all night will create a poor quality of sleep. As a result, we may wake up with headaches or other problems due to the constant noise at night.

The quiet of the night is affected by the noise from the computer fan.

Heat generation

This aspect is not important in winter, but when the weather is hot like now, this can increase the temperature of the environment. When the computer is running, no component can be below room temperature, and the difference can be much larger, so the heat output will affect the room temperature.

For example, at night, when the room temperature is 25 degrees Celsius, the temperature of other components on the computer can increase by about 10 - 15 degrees Celsius when operating. As a result, turning on the computer at night will cause the room temperature to be higher, affecting the quality of sleep. Even if the air conditioner is turned on, it will have to work at a higher capacity and affect the energy consumption.

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