Sleeping with air conditioning on: the right temperature and how to avoid dry air
Sleeping with air conditioning on in the heat is common from Dubai to Almaty. Here is which temperature to set, how to avoid a dry throat and skin in the morning and how to set up your bedroom for sound sleep.
In a hot climate, it’s impossible to sleep at night without air conditioning, yet in the morning many people complain of a dry throat, a stuffy nose or tight skin. Sleeping with air conditioning on is fine — it just needs to be done wisely: the issue isn’t the unit itself but how it’s set.
Is sleeping with air conditioning bad?
No, coolness actually helps sleep. Body temperature naturally drops before sleep, and higher temperatures are linked to shallower sleep, so the Sleep Foundation directly advises using a fan or air conditioner.
- The comfortable range for sleep is about 65–68 °F (18–20 °C). If it’s 104 °F (40 °C) outside, you don’t need to set the minimum right away: start at a point that feels comfortable and lower it gradually.
- Turn on sleep mode or a timer so the AC runs more gently toward morning.
- A light blanket and breathable bedding help you avoid getting cold under the flow of cool air.
What is the best temperature to sleep with AC without waking up unwell?
Unpleasant sensations in the morning are more often linked not to coolness as such but to drafts and dryness. Research shows that people sleep better and longer with moderate airflow than with the air conditioner running at full power.
- Point the louvers up or to the side so the airflow doesn’t hit the bed directly.
- Keep an eye on humidity: 30–50%, no higher than 60%, is optimal. If the air is too dry, a humidifier or a bowl of water helps.
- Clean the AC filters regularly according to the manufacturer’s instructions.
- Drink water in the evening and keep a glass by the bed.
Good sleep is made up of small things — see our articles Evening rituals for sound sleep and How much sleep do you need, and for life in a hot climate, Adapting to a hot climate. For evening relaxation, you can try the Silent Nights patch — according to the company, it’s melatonin-free and does not penetrate the skin. And for skin that dries out under the AC, the Alavida Night cream comes in handy.