So the first night I got my iphone 6s+ I had it sitting next to my laptop while syncing, fell asleep around 11 and woke up at 3, I found I had left my iphone near where the hot air was being pushed out on my laptop and awoke to the iphone being really hot and the warning screen being displayed, it was in a tech 21 tpu case so i picked it up and moved it and within 30 secs I was able to use the device, my question is should I be worried at all or should I go in a exchange for a new one?