Me neither... I've had a 'no-wake-up-after-sleep' on my TiBook, though. Those are bad, because when I return after an hour and my TiBook doesn't wake up (well, it actually does, but there's no light...) I don't always remember which files were open/changed without saving... But I've had those before, sometimes, so I don't think this is 10.1.4 related.