The daftest Royal story of the week so far is that Prince Harry has bought a Spiderman duvet and pillow cover for his bed in his Army barracks.

The 22-year-old Prince and officer in the Household Calvary’s Blue and Royals regiment, bought the set as his contribution to a running joke with his fellow officers.

A source told Britain’s The Sun newspaper, “Harry is very proud of his Spiderman duvet and pillow. He bought the set to join in with the other lads who all have comedy duvets. There is everything from My Little Pony and Bob The Builder to Barbie. It is funny to think some of the most highly-trained soldiers in the British Army snuggle up under duvets with their cartoon favorites on. Harry’s room looks like an eight-year-old’s. But it has almost become a tradition that everyone has a comedy duvet.

“It was started a few years ago by soldiers who wanted to have a laugh when senior officers inspected rooms. They struggle to keep a straight face when they walk in and see a ‘Bob The Builder’ duvet. It’s a bit of fun and good morale. Lads spend hours trawling the internet for sheets nobody has got.”

Harry returned to his Combermere Barracks base, conveniently in Windsor on Monday after a week-long visit to see girlfriend Chelsy Davy in South Africa.