I need to vent...
I sent my 17" Macbook Pro for repair LAST MONTH for a sleep issue that would make the notebook freeze and the only way to restore it would be do to a reset, causing any files not saved to be lost.
You should have did some research, this is a well documented bug in OS X. It's not a hardware issue. Even my Mac Mini has this problem from time to time, as do all Macs on 10.6
It's something Apple needs to fix in a software update but so few people get it as is that I doubt they will.