Sleep/wake button no longer working

i swear to god, no one searches anymore. there are tons of threads on this. Apple will replace it with a new white box replacement device. If you don't have a store near you, you can go online and request to send it in for replacement. That should take a few days. Here are a few of the dozens of threads on this already where your exact problem and possible solutions have already been covered and beaten to death. My suggestion would be to goto the closest apple store, even if its a hike just to have it replaced the same day. But that's up to you. I had mine replaced in 15 minutes by them.

http://forums.macrumors.com/showthread.php?t=1578887&highlight=power+button
http://forums.macrumors.com/showthread.php?t=1484788&highlight=power+button
http://forums.macrumors.com/showthread.php?t=1571401&highlight=power+button
http://forums.macrumors.com/showthread.php?t=1561206&highlight=power+button
http://forums.macrumors.com/showthread.php?t=1550414&highlight=power+button
http://forums.macrumors.com/showthread.php?t=1552889&highlight=power+button
http://forums.macrumors.com/showthread.php?t=1542190&highlight=power+button
http://forums.macrumors.com/showthread.php?t=1540401&highlight=power+button