The Duchess of Cornwall, a grandmother herself, and step-grandmother to Prince George, came across a bed with a difference when she visited the Royal Festival Hall- enormous in size and home to two storytelling grandparents.
Camilla was not only intrigued by the giant bed and Grandpa Joe and Grandma Josephine from the famous Roald Dahl classic Charlie And The Chocolate Factory - but also enquired about the couple's bed socks.
The characters were appearing in the production Grandpa Joe's Giant Storytelling Bed, which imagines life after their grandson Charlie has been given Willie Wonka's famous sweet making company.
Actor David Gooderson, 72, who plays the lead character in the show staged at the Royal Festival Hall as part of the Imagine children's festival, said: "The Duchess wanted to see our bed socks she asked 'have you got your bed socks on?', and we pulled out our feet and showed her."
Anita Wright, 81, playing Grandma Josephine and dressed in a flowing nightshirt and cap like her stage partner, added: "She said she would love to have a nap on the bed and we invited her to come in."
The Duchess did not venture onto the quilt covered mattress that was 40 metres (130ft) square and had a brass bed head, but dozens of children had fun rolling around on it.