This has nothing to do with VDJ or DJing, but I thought I'd share what I've gone through. Every time I would put my laptop to sleep, my wireless mouse would wake it back up with the slightest movement or bump. Sometimes I would be in another room, running on battery, and it would wake up from the cats or anything moving my mouse.
I had checked the "Allow This Device to Wake the Computer" setting a hundred times, and verified that it was off for all pointing devices.
Finally I started digging late last night. I had to go into the properties page for the receiver - and voila, problem solved!
Just thought I'd share this little tidbit in case anyone has had a similar issue. You have to tell it that the receiver should also not wake the computer (in my case it shows as the Logitech Unified Receiver).