Is anyone who is running a Windows 7 VM on a new 2011 i5 Macbook Air (I have the 13" w/128 SSD) able to put their Macbook air to sleep for extended periods of time (like overnight) without manually shutting down or suspending a VM that's running in Parallels, VMware Fusion or VirtualBox?

I've tried all three virtualization products with no success. With all three, if I forget to manually shutdown or suspend the VM, OSX reboots when I try and wake the Macbook. Same goes if I try and use the Deep Sleep widget. Parallels support openly admitted that this was an issue and thankfully gave me a refund. I've also tried the trial version of VMware and VirtualBox, but the behavior is the same.

Should I just give up or is anyone out there having more success at this?