This study http://www.oniros.fr/A1350.pdf seems to indicate that sleep duration ...

fcr on June 26, 2009 | parent | context | favorite | on: How to hack your brain - Part I: Sleep

This study http://www.oniros.fr/A1350.pdf seems to indicate that sleep duration has no effect. Their interpretation is that a process is triggerd when you enter sleep but once triggered it is independent of wheter you sleep or not.