I would move all of your couches, chairs, etc. I thought i lost a library book, even paid for the replacement book, only to find it months later when were moving stuck way under our couch. grrrr
Oh NO! I hope that you find it pronto. Surely if you left it at the hospital, it will turn up. I wouldn't think it would be something someone would want to steal. And any healthcare professional would recognize how important it is and realize that someone would want it back.