2729 Horse Pen Creek Road, Suite 105, Greensboro, NC 27410

Did You Know Temperature Can Affect Sleep Apnea?

July 26, 2025

Woman trying to fall asleep

Living with sleep apnea can make it challenging to get the deep, restorative rest your body needs. While many people focus on treatments like CPAP therapy or oral appliances, fewer realize that something as simple as bedroom temperature can also influence symptoms. When the environment is too hot or poorly ventilated, your body struggles to regulate itself, which can make breathing disruptions more severe.

Understanding how temperature affects sleep apnea is key to improving your rest and overall health.

The Connection Between Temperature and Sleep Quality

Your body naturally lowers its core temperature at night to help you fall asleep and stay asleep. This process, called thermoregulation, plays a major role in sleep cycles. If the room is too warm, your body has to work harder to cool itself down, often leading to restless sleep. For individuals with sleep apnea, this added strain can make episodes of interrupted breathing more frequent and more disruptive.

On the other hand, a cooler environment helps your body maintain its natural sleep rhythm. Studies suggest that an ideal bedroom temperature for most people is between 60 and 67 degrees Fahrenheit. Within this range, your body can achieve deeper sleep cycles with fewer interruptions.

Why Heat Can Make Sleep Apnea Worse

Hot weather or a stuffy bedroom can worsen sleep apnea symptoms for a few reasons. First, high temperatures can lead to nasal congestion, making it harder to breathe clearly throughout the night. This can intensify snoring and obstructive sleep apnea episodes. Second, heat increases sweating and discomfort, which may cause frequent awakenings. Sleep apnea already disrupts rest, and these additional disturbances can make it even harder to feel refreshed in the morning.

Finally, when the body struggles to regulate temperature, the brain may spend more time in lighter stages of sleep rather than deep, restorative ones. Since people with sleep apnea already have limited access to deep sleep, the effects of heat can make fatigue and daytime sleepiness much worse.

Tips for Creating a Sleep-Friendly Bedroom Environment

If you notice that hot nights make your sleep apnea symptoms worse, the good news is that small changes can make a big difference. Try these strategies:

  • Keep your bedroom between 60–67°F with air conditioning, fans, or open windows.
  • Use breathable bedding made of cotton or linen to allow better airflow.
  • Avoid heavy meals, alcohol, and caffeine before bed since they raise body temperature.
  • Take a cool shower before bedtime to lower your body temperature.
  • Consider blackout curtains to block heat from sunlight during the day.
  • If you use a CPAP machine, make sure it is properly maintained, as heat and humidity can sometimes affect performance.

By creating a sleep environment that supports healthy thermoregulation, you may find it easier to breathe comfortably and get the restorative rest you need.

A Restful Night Is Possible

Temperature plays a bigger role in sleep apnea than many people realize, but with the right adjustments, you can set yourself up for more restful nights.

About the Practice

If you’re counting sheep, it may be time to call your healthcare team instead. At SleepMed Solutions, patients receive personalized care for sleep apnea and related disorders. Our team of doctors offers comprehensive diagnostic testing and treatment options, including CPAP therapy and oral appliances, to help patients improve your sleep quality and overall health.

Call us at (336) 907-7773 or request an appointment online.