Yes, he said, specifically, under the mattress. Since then I've heard it was kept in the closet, then in the garage (until their alarms started tripping, then it moved to under the mattress) or was it in a closet in the garage? Hard to say with LR, what he meant!
I'm glad that someone else also heard the sword might be in the garage...I thought I was hallucinating. I hope LE is taking notes of all his changing stories.