It is 2am. You are replaying the consent form, wondering whether you should have asked one more question, and trying to remember whether the phone charger made it into the bag. The Night Before the Operation is written for exactly that hour. It does not explain what happens on the operating table, and it will not tell you whether to have the operation. Instead, it offers a twenty-minute packing method you can actually follow when your concentration is gone, a short routine for quieting a mind that will not settle, and honest permission to accept that a perfect night's sleep may not happen. It also speaks to readers going home alone, without paid leave, or without a lift, and it names the red flags after discharge that mean contacting your team or emergency services today. Warm, plain-spoken, and clear about its limits, this is a companion for the corridor and the living room, not the theatre.