Well, phoop! I made the dough for my rolls, but it’s not rising very fast - too cold, I guess - and won’t be done in time. I’ll have to stop at the grocery store and pick up some buns, and we can eat ours tomorrow.
When I used to make sourdough bread, I covered the dough bowl with plastic and set it on top of the water heater. There was always enough heat to get it to rise in record time.