I can't tell you why, but if you go to the driver for the mouse and keyboard,
and disable "Allow this device to wake computer", your problem will probably
go away. I had the same issue, without touching the mouse or keyboard, but
the issue went away with this fix.

"a_running_pir8" wrote:
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>
> Hi! I have been having this problem and for the likes of me cannot
> figure it out. I put my computer into sleep mode every night before I
> go to bed. Sometimes its 10 sometimes 11 sometimes 12. My problem is,
> vista cannot stay put in sleep overnight. I wake up to find my computer
> on. I have been tracking the event log, looking for a reason for it to
> be waking up, but to no avail. I have noticed, however that it ALWAYS
> wakes up at 2:00 a.m. on the dot everytime. I have changed the times
> for defender, windows update, and have also tried disabling the network
> adaptors before I put it into sleep. The only thing shown after the
> event log is the volume shadow copy service, but this isnt until about
> 2:30 to 2:45....30 to 45 minutes after it wakes up. Any information
> will be of help thanks! (I have also tried multiple video drivers.)
>
> Michael
> Windows Vista Home Premium
> Asus A8R32-MVP Deluxe
> AMD Athlon X2 4400+
> 2 Gigs RAM
> ATI Radeon X850 Platinum w/ Catalyst 7.4
>
>
> --
> a_running_pir8
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