Dave has been having laptop troubles with standby/hibernation. It seems to be a prickly area. I always put mine into standby (and let it lapse down to hibernate, and it seems to work fine. The Thinkpad has been marvelous that way. The old Dell, on the other hand - I had to completely disable hibernation, because it never came out of it well. Likewise, some of my co-workers report the same problems with their Thinkpads. There's been progress by the vendors in this area, but it still seems way more fussy than it ought to be.
Meanwhile, I had a strange issue - I thought my battery wasn't charging. It ran down to 5%, and plugging in was doing nothing. Fortunately, the old "slide it out, slide it back in" trick worked - it wasn't connecting fully, I guess. Laptops are still fussy beasts...