Thanks @omfedor, I like your approach. I am one of the lucky ones who have a very fast metabolism, I do not need to sleep much, by design. I can carry on for weeks of 5 hour sleep cycles, but then I need to catch up. I do this by taking a weekend of doing nothing, vegging in front of the TV and sleep when I need to. Another one of my weird characteristics, I can sleep VERY well in front of a TV. Opposite of my wife, who cannot sleep of there is a light on or any noise whatsoever.