Brainwave Enterprises today announced pzizz 1.6, the latest version of its award-winning power napping software. New features in this release include: improved Energizer Algorithm and Keyboard shortcuts for Export and Save; changed export messages during compression; a new “Check for Updates” preference; and more. Pzizz 1.6 is available as a free upgrade for existing customers, and the pzizz software is priced at US$39.95, while the sleep module is available for $19.95.