We've seen heatwaves in the US and the UK already this year, and while that might be great for a day at the beach or park, it's not ideal for sleeping. Especially if you're one of countless people making a common yet key mistake with your bedroom window that unintentionally makes your bedroom even hotter during a heatwave.
After staying in a beautiful, but particularly hot, rental property in the UK for a week as temperatures soared during a record-breaking May heatwave, I learned a bedroom window hack that can help keep you cool at night. And here I've spoken to sleep and home experts about why it actually works.
