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How Your HVAC Impacts Your Quality of Sleep

Let’s face it – a good night’s sleep is invaluable.

And the last thing you want negatively impacting a good night’s sleep is an HVAC system that isn’t up to par. If your lack of sleep is related to your HVAC system, there is good news – there is a fix! Check out the ways a smoothly running HVAC will keep your slumber sound.


A noisy HVAC can affect your rest, especially if you are a light sleeper. Not only can loud noises be very disruptive, but sounds that are louder than a slight hum can also indicate an underlying issue, an older unit, or a unit that is on the verge of break down (1). New or strange noises are an indication that it’s time to have your system checked before a larger problem arises. Sounds such as squealing, gurgling, or hissing are all indicators to call a professional (5).


The humidity levels in your home will directly affect your sleep as well–and that probably comes as no surprise to you. If the humidity is too low, you could end up with a sore throat or dry and itchy skin. If the humidity is too high, you run the risk of bug infestations and mold growth. Both conditions can create a tough sleeping environment. Your ideal humidity level is around 50 percent. Depending on weather conditions and conditions specific to your home, this could mean humidifying or dehumidifying (1).

Indoor Air Quality

We’ve talked about it before: indoor air quality refers to any foreign material or particulate circulating in the air in your home. Things like pollen, pet dander, dust, debris, cooking and cleaning supplies with toxic chemicals, or even dangerous gases like radon or carbon monoxide can all hurt your indoor air quality (2). In the long-run, that can be negative for our health.

Poor indoor air quality can trigger asthma attacks, allergies, and cause or worsen breathing issues during sleep, all things which increase the risk of unhealthy sleep patterns. Have a certified professional from Greater Comfort test your indoor air quality.  Other tips include:

  • Make lifestyle changes today to help prevent indoor air quality issues: Switch to more natural or fragrance-free household cleansers.
  • Use the kitchen fan or vent when cooking.
  • Sweep and dust regularly
  • Keep your pets groomed and washed (1)

It is also important to change your air filters regularly, ensure your bedroom has adequate ventilation and circulation, and receive regular HVAC system maintenance (3, 5). A recent study from Harvard confirmed that the better your air quality, the better your quality and depth of sleep will be. The study showed poor air quality was linked to an increase in sleep apnea symptoms. The study also estimated that 1 out of every 6 allergy sufferers have allergies due to the quality of air INSIDE their homes (3, 4).


Temperature is a variable that is unique to each individual. Finding the best temperature range for you could take some trial and error. New technology, such as home zoning, can make bedroom temperature control even easier. Staying in a comfortable temperature range will ensure less waking during the night.

Besides altering the thermostat, you can modify the number of blankets and comforters you use, depending on the time of year. You can also use blinds or curtains to modify how much sunlight you let into your bedroom during the day (1).

Call the Experts at Greater Comfort Today

We’ve installed, maintained and repaired more than 25,000 HVAC systems in our 28-year history! Have any questions about your HVAC system and how it can impact your quality of sleep? Contact us at 859-491-4915 today.