Ms Sanchez was photographed in several glamorous outfits in a photoshoot at the sprawling estate.
In one picture she is seen lying in the “10,000-Year Clock” in a red, sequinned Dolce & Gabbana dress.
The clock, which is built inside a mountain, is programmed to chime every one, 10, 100, 1,000 and 10,000 years.
It took more than a year to drill 500 feet into solid limestone and quartz to build and a further two years for a diamond-cutting robot to slice stairs into the stone.
Ms Sanchez said that it “represents thinking about the future”.
Ms Sanchez, who was born in Albuquerque, New Mexico, to a mechanic father and a civil servant mother, said that the couple’s lives are “pretty normal” and revolve around their children.
She said that they try to journal in the mornings and avoid looking at their phones straight after they wake up.
While they work out together, they have to do different routines because Mr Bezos is a “monster in the gym”.
Ms Sanchez said that her secret to ageing gracefully is “MEDS” – meditation, exercise, diet and sleep – and suncream.
She also clarified that the voluptuous figurehead on the bow of Koru is not modelled on her but on Mr Bezos’s favourite mythical creature, Freyja, the Norse goddess of love, fertility, war and gold.
“I’m very flattered, but it’s not,” said Ms Sanchez, who gestured to suggest if the model was based on her, it would have a larger chest.
Robert Johnson is a UK-based business writer specializing in finance and entrepreneurship. With an eye for market trends and a keen interest in the corporate world, he offers readers valuable insights into business developments.