I bought my mom a Macbook on Jan 21st and I've experienced these problems several times. Last night, I tried to sleep the Macbook but it wouldn't go to sleep, I eventually had to shut it down to turn it off. I closed the lid, the white light on the front came on, and then after about 20-30 seconds, it made a noise and the apple on the back of the screen lit up and it came back to life. I tried to sleep from the menu bar and it wouldn't go to sleep either. There wasn't anything plugged into the laptop like a mouse or anything else, so I don't know what would be causing it to do this. I have a MBP and have never had a problem like this. Another problem I have that has been widely discussed here is that the keyboard freezes every so often and it gets to the point where it's annoying. It happened at least 3 times yesterday alone when my mom was trying to work on her thesis. I saw that there was a firmware update that supposedly fixed this, but my Macbook is new enough that it doesn't need that update. Is this Macbook defective? I'm thinking I may have to bring it into a Mac store sometime this weekend and have it looked at if I can't get these problems solved. Any suggestions/ideas? Thanks!