While hiring a sitter for your worm bin may be an option, there is an alternative. Simply bury 2 to 3 feeding’s worth of food in your bin to provide extra food for your worms, then add a layer of moistened newspaper or cardboard on top of your substrate to provide extra food if you worms manage to munch through the food scraps before you return. When you get back, remove any old, uneaten food and begin caring for your worm bin as usual.