How to fall asleep quickly, especially if you’re stuffy from the heat

Switch on the fan and air conditioning
Remember that you can catch a cold in the heat. Use your fan and air conditioner, but close doors to avoid draughts. The windows can be open at the same time. After all, it is useful to fall asleep in a ventilated and slightly cool room.

Exclude sources of light
The hormone melatonin, which helps you fall asleep, is only produced in the dark, so make sure that all light sources are switched off. And yes, try not to stick to your smartphone at least an hour before bedtime, as the light from the screen has an invigorating effect.