I don't use sleep at all. I always shutdown my laptop and restart when I need it again.<p>It's probably an historical thing for me, dating back to the days when RAM was a high drain on battery life while sleeping, such that anything more than a day of sleep meant that the battery drained completely, the RAM then became unpowered and lost all data anyway.<p>If my laptop takes a mere 15 seconds to start up, why bother to use sleep at all? It's all really boiling down to personal choice.<p>Another point to ponder is that <i>a laptop is really a secondary machine</i>. Using a laptop as a main-machine is a constrictive compromise.<p>The main machine is still a desktop with a large 'plenty of display at readable size' amount of viewable real-estate. It's also running 24/7, has a huge amount of file storage, and acts as a personal internet server for files or whatever.