I find that the more applications I have open, the longer it takes for my computer to sleep. With nothing open, it takes a few seconds. With 20 Messenger windows open (don't ask why), it takes more than a minute. Similar results with no Messenger windows but a lot of IE/Visual Studio/Word/etc.
Hybrid sleep is off.
What could it be doing with these windows/processes that's making it take so long? Is there any way to speed it up?