As he pulled items out of a bag in the studio, he said: "Here is a robe, who wants a robe? It's a 3000 thread Egyptian cotton … I flocked the slippers, these are high grade slippers.
"I managed to steal the alarm clock. Anyone want a tea or a coffee because I got the kettle.
"You are going to the gym a lot so I thought I'd bring you some scales," he said, handing them over to his co-host Ash London.
He also took a hairdryer and the telephone - just for good measure.
"I snuck it out in my suitcase just to show you how easy it is but once obviously the cleaners go to the room today I'm going straight to jail guys but it was so worth it," he said.
But it wasn't Grant's only odd confession of the day.
Speaking about a family of four in the UK who have raised eyebrows for their water-saving habits – by going to the toilet together.
Grant said he has done the same with his wife of nine years and the mother of his two children, Cheryl Denyer.
"I have sat Chezzi on the toilet while she has gone and I went on the same time between the legs to see if I could do it. I am a good accurate shot," he said.
"Save the planet guys, pee at the same time."