IPhone 5 power button not responsive Recently the power button on my iPhone 5 has become hard to press, and slow to come back up after being pressed. 

Update :
As I was typing this I was repeatedly pressing the power button. It eventually returned to its normal position. I am adding this question anyway because I want to know if anyone else has experienced this issue and if so did they had to take their phone into Apple for repair (or talked to a Apple rep that recommended they take it in). (i.e is it a symptom of a bigger problem>)

Update  :
It appears to continue to stick at times. I'm going to bring it in next chance I get. Thanks. Note: It's fairly cold here some days (10'F) I'll have to check that next time it happens (probably not).
Honestly, this sounds like a hardware problem. It wouldn't be software causing that. Chances are it's simply a bad switch. Hopefully you have AppleCare. If so, wait until it gets bad then take it in. They probably would just replace it. Otherwise - purchase AppleCare if you're still within the time. ;-) 

I suppose there is also the possibility something like that could come from something somehow getting in the switch, or damage from a drop. Likely not the case for you, but I think it could happen.

Again, in conclusion, it's probably a bad switch.