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6 simple ways to keep your bedroom cool (without aircon) this summer

No air con? No problem! These genius hacks will keep your sleep space cool when summer nights swelter.
Colourful bedroomAre Media Syndication

There’s so much to love about summer; longer days, balmy nights, ocean swims and seaside getaways. But soaring temperatures and high humidity rarely create ideal sleeping conditions – especially if you don’t have air-conditioning in your bedroom.

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The good news is there are some simple, effective steps you can take to keep your bedroom cool, even during the muggiest heat waves – below are six of our favourite.

6 ways to keep a bedroom cool in hot weather

1. Get the air moving

Ventilation is the best way to stay cool during the long, hot summer months. If you’re a sleep-with-the-door-shut type of person, you may want to adjust slightly. Any potential for crosswind airflow is curtailed when you have your doors and windows closed. So open up the windows, including those just outside your bedroom, as well as your bedroom door, to eliminate hot air and get the breeze circulating.

Amp up your crosswind airflow with a portable electric fan, or ceiling mounted option. Both types of cooling fans will ensure you always have air-flow, even when there isn’t a breeze blowing outside. Place a shallow bowl or pan of frozen water in front of a pedestal fan so the circulating air picks up the cold water from the ice as it melts; creating a cool mist that offers as much relief as air conditioning.

Another hack is to position fans at cross angles, directed towards windows so you push hot air out. If you have a ceiling fan, reverse the setting so instead of blowing downwards, it sucks hot air upwards.

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Air-conditioning in the bedroom can offer instant relief but it is actually far healthier to use a fan. Spending prolonged periods in chilled and dry environments dehydrates your body. (Credit: Photography: Martina Gemmola)

2. Invest in the right mattress

In general, having a comfortable bed is conducive for quality sleep, but you might not be aware that your mattress could affect how sweaty you get at night.

First off, if your mattress is more than eight years old, it’s probably time for an upgrade as sweat and bacteria build up in the fibres over the years. Prior to purchasing a new mattress there are a few things to consider when it comes to keeping you cool.

Not all mattresses are created equal. Be sure to invest in an innovative cooling mattress that promotes airflow and prevent overheating.

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Decorated bedroom
(Credit: Photographer: Alana Landsberry)

3. Choose a new pillow

Experts agree the ideal temperature range for a good night’s sleep is 15 to 22 degrees Celsius, but we all know during the hot New Zealand summer overnight temperatures can linger in the high 20s to 30s. Flipping your pillow to the cool side will be an all-too-familiar practice for most of us, but a pillow made from specifically cooling materials, such as gel-infused memory foam, ventilated latex, shredded foam, and down alternatives, offer increased support and airflow. Phase-change fabrics (PCMs), graphite or copper infusions, and engineered airflow channels are innovations that work to regulate temperature throughout the night, keeping you cooler for longer.

4. Switch up your sheets

Bed linen makes a huge difference to your comfort throughout the night. In the same way that clothing made of breathable fibres keeps you cool during the day, cooling bed sheets made of fabrics like linen, bamboo and cotton will ensure you stay cool and dry throughout the night.

Bamboo is a highly breathable and moisture-wicking fabric that has a soft, silky texture that feels cool to the touch. Linen, although more expensive, is super breathable thanks to its loosely woven fibres. Both bamboo and linen sheets are also eco-friendly and kind to your skin.

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There’s nothing revolutionary about cotton sheets, but they are a great option for summer as they are breathable, moisture-wicking, hypo allergenic, durable and easy to launder. Remember to always read the label on your bed linen of choice, whether cotton, linen or bamboo, as sometimes those natural fibres will be mixed with microfiber or polyester – which is going turn up the heat!

(Credit: Photographer: Foss Lynden)

5. Lay low and block out windows

Hot air rises so the lower you are to the ground, the cooler you will be. If you live in a two-storey house with a guest bedroom on the ground floor, consider spending the night there.

If you don’t have the luxury of an extra room, you can still ensure your room stays cool. Sunlight entering through windows during the day will cause the temperature in your bedroom to rise dramatically. Although it can feel a little dark and gloomy, keeping the curtains or blinds closed throughout the day will stop this from happening.

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6. Unplug devices and swap out lightbulbs

It’s all about the one percenters when you’re trying to keep your bedroom cool without the luxury of air-conditioning.

Leaving your phone, computer and anything else electrical unplugged and out of the room will keep your room slightly cooler, as all electrical devices radiate some warmth. Traditional incandescent bulbs also emit excess energy in the form of heat. Switch to energy-efficient LEDs, which are cool to the touch, will keep temps down and save you a small fortune in power costs.


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