The original is "garder le lit comme une mariee". It's hard to know as it's semi-colloquial 1830's French, but I would understand it in the sense of 'he stayed

The original is "garder le lit comme une mariee". It's hard to know as it's semi-colloquial 1830's French, but I would understand it in the sense of 'he stayed in bed like a honeymooner'.