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Why Does Air Conditioning Make Me Sleepy?

August 8, 2023

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why does air conditioning make me sleepy

It's a hot summer day, and you're sitting in your nice cool living room, thanks to your trusty air conditioner. Before you know it, your eyes start to feel heavy, and you find yourself drifting off to sleep. What gives? 

Why does air conditioning make me sleepy? To sum it up, the cool temperatures generated by air conditioning mimic the body's natural tendency to sleep better in a cooler environment, inducing drowsiness. Air conditioning also provides soothing white noise, ideal humidity levels, cleaner air, and lack of physical exertion, all conditions conducive to feeling tired.

Let's take a look at the science behind this phenomenon. If you require AC repair, please contact a professional for services.

It Lowers the Temperature

This one may seem obvious, but air conditioning makes you sleepy by literally cooling down the environment you're in. Experts say the optimal temperature for sleep is around 65°F. Air conditioners can easily bring the temperature down into the 60s, hitting that sweet spot for sleeping. The cooler environment triggers your body's natural inclination to sleep. Much like how bears hibernate in the winter, your body wants to conserve energy when temperatures drop.

It Reduces Physical Activity

When it's hot and muggy outside, no one wants to move a muscle. But physical activity and exercise promote wakefulness by raising your body temperature and heart rate. When you're stuck inside all day with the AC blasting, you're probably not getting much exercise. The lack of physical movement makes your body and mind lazy, leading to sleepiness.

sleeping man in black shirt

It Creates White Noise

The constant hum of an air conditioner produces a form of background noise called white noise. This steady, unobtrusive sound helps block out random noises that may disrupt sleep. It creates a masking effect that dampens distracting sounds like traffic, neighbors, or household noises. 

Studies show that people sleep better in the presence of white noise versus complete silence. It has a calming, lulling quality that signals your brain it's time to relax and sleep. The white noise shelters you from stimulation that could keep you awake. Some people find the soft drone of an AC unit just as effective as sleep machines or recordings designed to induce sleep through sound. 

The ambient rush of air coming from the vents can further block background noise and promote better sleep. So the white noise from your trusted air conditioner acts like a buffer creating the optimal peaceful environment for drifting off to dreamland.

It Lowers Humidity

Humidity refers to the amount of moisture in the air. Air conditioners reduce humidity by removing water vapor from the air through condensation. Low humidity levels are associated with better sleep quality. When humidity is high, it inhibits your body's ability to regulate its temperature through sweating. The optimal sleep environment has a humidity around 50-60%. Air conditioning dip humidity down into this range.

woman waking up

It May Reduce Stress

For many people, heat causes irritation and anxiety. Trying to sleep when you're sweating and uncomfortable amps up your stress levels. Research shows that elevated stress disrupts sleep patterns. By cooling you down and making you more comfortable, air conditioning may indirectly lower stress hormones that interfere with sleep.

It Cleans the Air

Air conditioners don't just alter air temperature and humidity; they also filter out allergens and pollutants. Dust, pollen, and other particles are removed from the air as it passes through the AC unit. This cleaner air can help those with allergies or asthma breathe easier. Uninterrupted breathing promotes sound slumber.

why does air conditioning make me sleepy

Time to Catch Some Zzzz's

So, in summary, air conditioning facilitates great sleep by lowering the temperature, providing white noise, reducing humidity, encouraging inactivity, minimizing stress, and purifying the air. The next time you start nodding off, as soon as you turn on the AC, don't fight it! Let the cool air lull you into much-needed rest. Just be sure to set an alarm so you don't accidentally hibernate through summer!

About 24/7 AC Repair Garland

Life isn't always fun when your home is sweltering hot. Our company can do something about that! Call (214) 206-4356 and have your entire HVAC system evaluated. 24/7 AC Repair Garland offers affordable, top-tier services residential and commercial customers can count on.

FAQs

Why does cold AC make me sleepy?

The low temperatures from air conditioning mimic the body's natural inclination to sleep in cooler environments, triggering drowsiness. Air conditioning also creates ideal cool conditions, white noise, clean air, and low humidity, which all contribute to feeling sleepy.

Can central air make you tired?

Yes, central air conditioning can make you feel tired due to the cool temperatures, constant background hum, and recirculated drier air it produces. The chilled environment created by central air triggers the body's instinct to conserve energy and sleep while also reducing physical activity, humidity, and noise that, leads to drowsiness and fatigue.

Why do I sleep better in AC?

The cool temperatures created by air conditioning match the ideal conditions for sleep, triggering your body's natural inclination to rest. Air conditioning also provides background white noise, reduces humidity, cleans the air, and minimizes physical activity and stress, all of which facilitate uninterrupted, higher-quality sleep.

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