Deep sleep is when our bodies and minds restore themselves, and that’s more apt to happen for most people when the room is cooler.
Your bedroom should be your sleep sanctuary. Studies show that a cool room temperature, between 60-67°F (15-19°C), promotes deeper sleep. Darkness is crucial too – even small amounts of light can disrupt your sleep cycles. Consider investing in blackout curtains or a sleep mask. And if outside noise is an issue, a white noise machine can help create a consistent, soothing sound environment.
—How to get more deep sleep? A sleep clinic’s guide
I have blackout curtains and a sleep mask, which also help. I’m not good about consistent bedtimes, another important strategy, but I’m working on that. I like having more energy during the day.
September 16, 2025
