The Denmark star, 33, is enjoying his second campaign with the Potters after being snapped up on a free in the summer of 2008 and still has two years left on his deal.
And the former Sunderland and Aston Villa stopper has revealed he wants to play on well into his late 30s.
He told the Sentinel: "I feel as though I can go on for at least another three, four or five years. But when you get to a certain age so much can happen with injuries and fitness that you have to take things one season at a time.
"But I am really enjoying my time at Stoke City. With the new training ground, everything is looking up. We have a very good first team and I am pleased to be part of that."