When Prince Charles and wife Camilla step out in public the two are always as prim and proper as they come, leaving what happens behind closed doors a mystery.
Now, the couple's sleeping arrangements at their home in Clarence House in London have been revealed, and they're not what you'd expect.
According to an insider, the Duke and Duchess of Cornwall split their time between three bedrooms.
A royal insider told Daily Mail, 'His Royal Highness has a room with a double bed, decorated to his own taste, then Camilla has her own room with a double bed, decorated just the way she likes it.
'In addition, they have a shared bedroom with a double bed that they can use whenever they like. The arrangement suits them perfectly.'
The couple wed in 2005 and moved into their London home, where they have been living happily ever since.