I am new to Mac and have a few questions about sleep mode. 1. When the MBP goes to sleep, do applications continue to run? Lets say I am importing photos into iPhoto, will that continue while in sleep or will it pause or something? 2. Will Time Machine continue to do backups in Sleep? 3. How much less juice will the system require when in sleep. I know this will vary and I am not looking for a specific number, but just a ballpark idea. If I am fully charged and put it to sleep will I get 5 hours or 5 days? Hmm I had another question, but it seemed to slip my mind. I am sure I will it will come to me shortly though.