Year 2 children at a Winchester school raised £2,500 for Children in Need.
Barton Farm Primary Academy pupils, inspired by Sir Ranulph Fiennes' resilience, ran 2km in their pyjamas to raise funds.
They initially aimed for £500 but exceeded this by promoting their event through letters, posters and videos.
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Executive headteacher Nicola Wells said: "We are so proud of our incredible children.
"Through our curriculum, our children learn that they can make a difference to others through their positive actions.
"The fact that they absolutely smashed the target has shown them how their determination can make a real difference to others."
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