For some reason, after I upgraded to Leopard, then whenever I put my MacBook Pro to sleep, it spontaneously wakes up after some time (can be from a few minutes to an hour or two.) I don't know why this is happening, but I know for sure that it's related to Leopard since I put my laptop to sleep every night (it's in my bedroom) and after upgrading to Leopard, it started to just wake up a short while after putting it to sleep. At first I thought it could be Time Machine, so I disconnected all my external drives, but that didn't seem to work. I have also tried resetting my SMC but that did not appear to fix it. Does anyone know why this is happening? Thanks in advance!