Sleeping earlier than usual

It's about 3am. I was saying just yesterday how it felt weird sleeping at 4:40am because I usually sleep around 6am. But tonight I'm going to attempt to sleep even earlier just so I can wake up to buy Final Fantasy XIII. Last time I did something like this was with Bioshock 2 and this time I have about 1/5 of the excitement in comparison. But anyways, who else sleeps around 6am normally?