The frequency with which you should wash your sheets depends on how often you sleep on them. If you don’t use your mattress every day, you may be able to stretch the washing to once every two weeks or so. However, some people should wash their sheets more frequently than once a week.

Facts

Falling is one of the most common dreams.

Falling is one of the most common dreams people experience. Some dream experts believe that this may symbolize things in life that humans can’t control, or aspects they struggle in. Normally, dreamers do not fall to the bottom, but continue to fall, until they wake up.

Myth

The vacuum of space is cold.

If you’re in total darkness at the coldest spot in the known universe, the vacuum of space can get down to minus-454 degrees Fahrenheit. Brr!

But in sunlight near Earth, temperatures can swing to a boiling 250 F. That’s why astronauts wear reflective white spacesuits.