Do you remember in the past we were warned to be careful about being in debt because interest never stopped charging us, interest never slept, never took a day off, never took a holiday. Well the reverse is true, as well. Is your money making money while you sleep? Does it sound too good to be true? Since we still live in the age of the interest, it’s not that difficult to earn extra money on the side. With that in mind, here are ways that you can actually earn money while you sleep.