How Bedroom Temperature Shapes Sleep Quality and CPAP Comfort December 1, 2025 How Bedroom Temperature Shapes Sleep Quality and CPAP Comfort Most of us know the frustration of tossing and turning on a warm night or waking up chilly and uncomfortable. But what many people don’t realise is just how much bedroom temperature influences not only how well we sleep, but also how comfortable CPAP therapy feels throughout the night. Temperature isn’t just a preference – it’s a powerful part of your sleep environment. Why Temperature Matters for Good Sleep Your body naturally cools down as you get ready for sleep. This drop in core temperature sends a signal to your brain that it’s time to wind down. If your bedroom is too warm, this process is disrupted, making it harder to fall asleep and stay asleep. Many studies suggest that most people sleep best in a room around 18–20°C, although personal comfort will vary1. A bedroom that’s too hot can increase awakenings, cause sweating, and leave you dehydrated1. Too cold, and your body works harder to stay warm, interrupting your sleep cycles1. Either way, temperature swings throughout the night can leave you feeling unrefreshed in the morning, even if you technically slept for the right number of hours. Temperature and CPAP Therapy: The Hidden Connection For anyone using CPAP therapy, bedroom temperature can make an even bigger difference. A warm room can make CPAP feel stuffy or humid, especially if you’re using heated humidification. You might experience condensation in the tubing (“rainout”), which can wake you suddenly. On the other hand, a very cool bedroom can leave the air from your machine feeling cold or drying, leading to sore throats, nasal irritation, or discomfort around the mask. Striking the right balance is key. A cool but comfortable room helps your CPAP machine deliver air at a stable temperature, reducing dryness and improving overall comfort. Many modern CPAP machines, like the AirSense 10 and AirSense 11, automatically adjust humidification, but the room’s environment still plays a big role in how steady the airflow feels. Practical Ways to Optimise Bedroom Temperature You don’t need fancy equipment to create a sleep-friendly environment. Small adjustments can make a meaningful difference: Keep your bedroom between 18–20°C where possible. Use fans or air conditioners to control heat during summer months. Choose breathable bedding and avoid heavy layers if you tend to overheat. In winter, warm the room slightly before bed, but avoid sleeping in a space that’s too hot. Position your CPAP machine away from direct heat sources to reduce condensation. If you’re experiencing dryness or rainout, adjust your humidifier settings or speak to your CPAP provider1. Sleep Better by Setting the Scene Your sleep environment matters more than you think. A comfortable room temperature supports deeper rest, reduces CPAP discomfort, and sets you up for a smoother night’s sleep. If you’re still waking tired, experiencing symptoms of sleep apnea, or struggling with CPAP comfort, speak with your doctor or a sleep specialist. A few adjustments may be all you need for truly restorative sleep. How Sove CPAP Clinic Can Help Founded in 2008, Sove CPAP Clinic has grown to become a leading provider of respiratory and sleep services and products in Australia, with over 80 clinics nationwide. Our comprehensive clinical team includes Respiratory & Sleep Specialists, Sleep Technologists, and CPAP Consultants, ensuring that you receive comprehensive and personalised care. All medical procedures, including sleep studies and lung function testing, are bulk billed to all Australians, with minimal wait time. If you would like to speak to a Respiratory & Sleep Physician, book a bulk-billed sleep study, or seek advice for your sleep apnoea, you can reach us at 1300 76 29 39 or info@thecpapclinic.com.au. References [1] Pacheco, Danielle. “Best Temperature for Sleep.” Sleep Foundation, updated 11 July 2025, https://www.sleepfoundation.org/bedroom-environment/best-temperature-for-sleep.
