Should I Turn My Central Air Conditioning Off at Night?

We get this question a lot from Minnesota homeowners looking to save some $$$—especially once summer hits. 
 
Here’s our answer: Sure, you can turn off your central AC unit to save money while you’re asleep. The only problem is, you’re less likely to sleep comfortably and wake up feeling refreshed.
 
Why’s that, you ask?
 
Scientists have found that our bodies sleep best when room temperature is between 60–67 degrees. If it’s hotter or colder than that range in your bedroom, it’s actually preventing you from having a good night’s sleep.
 
In this article, we’ll go more into the science behind temperature and sleep. We’ll also share a solution that will save you money on your energy bills AND keep you comfortable.
 
Let’s start with why it’s important to have the right temperature for sleep...

Why the right temperature is essential for sleep

Studies have shown that sleep is most likely to occur when our core body temperature decreases.
 
When we fall asleep, our body’s temperature naturally decreases as part of its sleep-wake rhythm. So when you intentionally lower your core body temperature, you signal to your body that it’s time to sleep.
 
One way to send that signal to your body is to lower your bedroom’s temperature to 60–67 degrees. If you go much higher or lower than that range, you’ll affect the quality of REM (rapid eye movement) sleep.
 
During the REM sleep stage, often called the “deep sleep stage,” you have higher brain metabolism and you often dream. Scientists say REM sleep is important to our overall health because it exercises important neural connections that improve our well-being and mental health.
 
Now you may be wondering: “So what’s the big deal if I don’t get a full night’s sleep? I can still function the next day just fine.”
 
Well, regularly not getting enough sleep can cause short term problems like:

  • Forgetfulness
  • Lack of focus
  • Depression

 
And in the long term, frequent sleep deprivation can lead to serious problems like:

  • Heart disease
  • Stroke
  • Diabetes
  • Heart failure


So your body needs a good night’s sleep. 

Luckily, there’s a solution that allows you to save money AND sleep comfortably: installing a programmable thermostat.

Solution: Install a programmable thermostat 

A programmable thermostat allows you to cool your home based on your schedule, which means you can save money when you’re not at home.
 
Let’s say you work 8 hours away from home. You can program your thermostat to be at a toasty 80 degrees while you’re away, but when 5:00 pm rolls around, the smart thermostat can automatically adjust to 72 degrees. 
 
Then, when it’s time for bed, you can program the thermostat to be 66 degrees so you can sleep comfortably—and you can afford to do it because you saved all that money during the day.
 
And the best part about programmable thermostats is that you only have to set up your preferences once; you don’t have to constantly remember to adjust temperatures at different times during your day.

Interested in a programmable thermostat?

Contact On Time Service Pros for a programmable thermostat installation. We’ll find a smart thermostat that works with your existing cooling system so you can start saving money right away.

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