Singing superstar Mariah Carey has revealed that she sleeps in a waterproof steam room that lubricates her larynx and protects her legendary voice.
The 37-year-old, whose voice spans a staggering five octaves, refused to allow the MTV Cribs film crew access to her bizarre boudoir, but she has let slip its secrets in a new interview.
All her bedding is made from towelling, which soaks up the water that condenses from the steam, and all her fixtures and fittings are protected by glass or other waterproof materials.
There's no room for a man in Carey's life - unless he doesn't mind accommodating her odd night-time routine and sleeping in a wetsuit.
Carey explains: "Literally, I'll have 20 humidifiers around the bed.
"It's like sleeping in a steam room. The bed is all terry-cloth, the ceiling is pitched so the water can't fall on my head and drips down to my side, and the TV is behind glass." - Wenn