What’s The Right AC Temperature For Bedroom In Winter?

July 6, 2025

DEEPCHILL thinks that choosing the right air conditioner temperature for bedroom affects your health and also energy bills.

When you see this post, it’s likely the coldest time of the year on the Gold Coast. Around this time, many people start wondering: What’s the ideal air conditioner temperature for bedroom in winter?

If that’s been on your mind too, but you haven’t found a clear answer – let’s break it down together.

5 reasons why finding the right temperature for bedroom in winter is important

Protecting your health

We both know that keeping your bedroom with the right temperature supports your immune system and lowers the risk of colds and respiratory issues, especially for kids and older adults. 

Staying comfortable and clear-headed

Have you ever fallen asleep in a bedroom that’s too hot or too cold? According to Medical News Today and Continental Hospital, that’s because extreme temperatures can make you feel tired or low. The right indoor temperature can actually boost your mood and energy.

Saving energy and money

Having 40 years working in air conditioning industry, we can say that turning the heat up too high uses more energy and costs more. So, what you need to do is finding the right temperature, then you can lower it a bit when you’re sleeping or not in the bedroom to save even more.

Encouraging movement

Bed Advice UK said that freezing bedrooms make you want to stay curled up all day. A warm space encourages light activity, movement or even heading outdoors for some winter sun – all great for your health.

Keeping things safe

The fact from Centre for Sustainable Energy is cold bedrooms in winter can lead to health problems (such as increasing blood pressure, catching respiratory illnesses, etc) or accidents, especially for kids and older adults. Keeping the temperature warm and steady helps keep everyone safe.

Controlling the air conditioner temperature for bedroom via smartphone app in a modern living space.

What air conditioner temperature should be set for bedroom in winter?

Daikin has suggested that the best bedroom’s air conditioner temperature in winter is between 18°C and 22°C. It’s a comfy range that keeps you warm without wasting energy and it’s good for your health too. 

At night, for most adults, the ideal bedroom temperature is somewhere between 15.6°C and 19.4°C. For babies, it’s a bit warmer, around 20°C to 22.2°C. These ranges already assume you’re using winter blankets and warm sleepwear so there’s no need to set the heat too high.

The reason why the best bedroom temperature can still vary is that it depends on factors like where your bedroom is (for example, north-facing rooms are usually colder), the time of day (you’ll need more heat at night than during the day), and how often you open the windows.

Setting the air conditioner temperature for bedroom using a remote during winter.

4 tips to find the perfect temperature for bedroom in winter 

  • Use a smart or programmable thermostat: If you have one. It can adjust the temperature on its own when you’re asleep or out so you can stay cozy without having to think about it.
  • Layer up at home: Wearing warm clothes lets you keep the heat a bit lower while still feeling snug.
  • Check your home’s insulation: Good insulation keeps the heat in and the cold out, making it easier to maintain a steady temperature without overworking your heater. Seal any drafts around windows, doors and other openings.
  • Make the most of sunlight: Open curtains and blinds during the day to let in natural warmth from the sun. Close them at night to keep the heat inside.

Wondering what air conditioner’s temperature you should set in winter? Besides these tips, good AC maintenance is key to keeping your unit running well during the colder months. For expert help, contact DEEPCHILL for expert air conditioning Gold Coast services.

Category: Tips & Tricks

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