Do You Sleep Less in The Summer?  It May Not Be Your Fault!

It's to hot to sleep!

If you love summer but can’t get enough sleep with the warm temperatures and longer days, you are not alone.

There is a medical reason why late spring and summer have you tossing and turning instead of sleeping.

One doc says it’s your caveman ancestor’s fault. The doc explains; 

“The thing with sleep, which is interesting, is that we’re used to cooling environments, cave-like,” Davis said. “We need it to be cool, dark and uninterrupted. What happens with the summertime – it’s hot, and the days are longer. So that hormone called melatonin, which is released when the sun goes down tends to be released later, which makes summer sleeping a little bit more difficult.”

While we tend to be busier and more active in the summer, our bodies still need the same amount of rest.


Your body produces melatonin naturally, and it helps manage your circadian rhythms, the body’s internal clock. The hormone drops your core body temperature, according to a study.

The cooler body temp “reduces arousal and increases sleep propensity.” 


In kids, the evening rise in melatonin is responsible for 40-50% of the drop in core body temperature, according to another study

Summer heat also keeps the body warmer.

That not only makes it harder to fall asleep but also makes it harder to fall into a deep sleep which may make it harder to stay asleep, according to the National Institute of Health. 

The ideal room temperature for sleeping is 65-68 degrees for most adults.

The obvious answer is to turn on the AC, but not everyone has one.

Keeping the AC running all night at 65 is also pricey. 


  • Keep the blinds and windows closed during the day to keep the heat out of the bedroom.
  • Turn the AC cooler an hour before you plan to go to bed.
  • If you don’t have an AC, open the windows and turn on the fan to get the cooler night air in.
  • Try putting your mattress on the floor because hot air rises.
  • Get rid of the pyjamas and blankets, and make sure that you have breathable bedding. Natural fibres tend to be more breathable than synthetic materials.