Tablet isn't waking up from a sleep

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http://forum.xda-developers.com – After a short period of time when the tablet sleeps it hardly ever wakes when I tap the power button. This issue only started a couple of days ago and seems to have gotten worse after today's update and I have owned the tablet since launch. Sometimes it will wake up right away, sometimes it takes a few clicks and other times it won't wake up until I reboot. The camera's firmware wouldn't update today either it kept staying that there was an error during install, but it did so after I shutdown the tablet and kept it off for several hours. I have tried several cold boots and cache wipes and eve (HowTos)