Canberra ranked world's best city to sleep in by Lenstore

Lenstore has looked at a range of factors, from temperature to air quality, to determine the best and worst cities for getting the best shut-eye.

Despite Canberra's average temperature being 3.35 degrees above the ideal 18.3 degrees, it has the lowest night and noise pollution and has the third-best air quality.

Canberra scored a perfect 10 for noise and light conditions and almost 10 for air quality.

"The Aussie capital ranks best of all locations for its lowest amount of night lights and noise pollution, which has a score of 80.82 out of 100," the report found.

"This is over double compared to the likes of Mexico City with a score of just 35.65 out of 100. The air quality in Canberra is also the third-best in the world, second only to Wellington, New Zealand, and Bern in Switzerland."

The next best city to get some shut-eye was Vienna followed by Luxembourg and Jerusalem.

The worst city in the world to get a good sleep was Washington (the US capital has more people searching for "sleeping pills" than any other location at 224 searches per 100,000 people).

Other hard-to-sleep cities included Santiago, San Jose, Warsaw and Paris.

Canberra's big skies and low levels of light pollution are well-known.

It's part of the reason the Canberra Deep Space Communication Complex is located at Tidbinbilla, located in a valley to avoid the interference of "human made noise" that can affect the data it receives back from a spacecraft.

Glamping was also offered in Tidbinbilla to offer people, including those from other cities, the rare chance of sleeping out under a huge sky of stars, with no light pollution.

The report found on average, a person sleeps for six hours and 54 minutes per night. The time we should be getting is a full eight hours, meaning we are missing out on 66 minutes of quality rest each night.

This can lead to physical and mental problems, including cognitive ability, according to occupational psychologist Suzanna Guest.

"If we've had a bad night's sleep, concentration will be impaired, and this can also impact our memory and ability to make good decisions," she said.

"In addition, lack of sleep can make our reactions slower, and we are also more easily overstimulated. This can make demanding tasks more difficult and possibly dangerous."