"First thing that came to mind is when my feet are close to the bottom of the bed," she said in the new video, which was filmed on October 18. "That's the scariest part of my day, every day."
The 19-year-old singer said she gags if her feet get too close to the edge of her bed, so she has to jump onto the mattress from "two feet away."
"I can't help myself but gag. It's disgusting. Creeps me out," she said.
Eilish said she even made sure that all of the furniture in her house, where she secretly moved after she left her childhood home in Los Angeles, rests on the ground so there's no space underneath.
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"I made that very, very clear," she said. "All my chairs, my couches, my bed frame, it all goes all the way to the ground. There's no storage. I would rather lose the storage space under my bed than have to step next to the bottom of my bed."
"I don't really get scared of scary things," Eilish continued. "I had a huge anaconda literally almost choke me to death and that was so much fun. So much fun."
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