Broken hot water bottle

I’m away at the moment. I brought my hot water bottle with me as hotels are usually too cold. I filled it up and popped it under the covers to where my feet would be. I then pulled back the bedspread. A damp patch was rapidly forming on the blanket. My hot water bottle had a hole. Bugger. There’s now a massive damp patch on the bed. Thankfully my room has 2. Some of the others have a bed and a sofa, or just the one bed. I’m just hoping it’ll dry by the morning. There’s only one thing to do now of course: buy a new hot water bottle and some lovely cosy yarn and knit myself a cover. Might be a good chance to learn to cable.