How to turn my iPhone 5 back on?

I had it charging last night and it was working just fine. This morning it was not responding to any buttons I would press or when I would unplug and plug it in to any cord or outlet. I tried pressing and holding down the home and sleep button, however, my sleep button does not work. Is there any other way to turn it on?

I was going to say hold down the sleep button and home button but, just go to the apple store

Connect it to your computer and restore it.

Could your charger/cord be bad so maybe it is completely dead? That happened to me about 6 months ago.