Yuck Shan! I guess I will be buying a new mattress today!
A cat sleeps an average of 12 hours a day, a dog sleeps about 10.5 hours a day and - just in case you have an exotic pet such as a giraffe - you better take some time off from work because your giraffe is only sleeping about 2 hours a day.
Charles Dickens was an insomniac, who believed his best chance of sleeping was in the center of a bed facing directly north.
The phrase "sleep tight" originated when mattresses were set upon ropes woven through the bed frame. To remedy sagging ropes, one would use a bed key to tighten the rope.
You burn more calories sleeping than you do watching TV.
