A lot of recipes say to allow the dough to rise until “double in size”. Depending on the recipe, this can range from 30 minutes to 2 hours. Just check at the halfway mark so you can get an indication of how much longer you have to go. For me, what’s important is finding the proper place to leave my dough.  It’s cold here most of the year so leaving my bowl on our not-so-warm counter is not exactly ideal.  So what I like to do is turn my oven on to its lowest setting for a few minutes, then turn it off so that it’ll be about 90F when I’m ready to put my dough in to rise. Just remember to remove the dough from the oven when you’re ready to preheat for baking.