LMT, a few inovative tips. Needs to between 20/25 degrees to rise well.If leaving in bowl.... In the sun behind glass window heat oven to 70 and place in there, turn oven off In bed with electric blanket on In preheated clothes dryer Out of TMX bowl. All of above over sink of hot water with tea towel over top or shower cap on. If sun has been falling on tiles, then this a good spot to place bowl. warm bowl before placing dough in. On top of electric hot water service on top of electric coffee machine that has a cup warming function.I am sure that there are many more ways to keep the dough warm.