I once made split pea soup with smoked sausage in a crockpot overnight in a hotel
for us to take along on a driving tour of Denali Nat'l Park(one weekend every Sept it's open for residents of Alaska to take their cars, usually bus tours are only allowed in, and this is by lottery only, so we got lucky). I put the soup in a big insulated jug, but the smell at night was to die for, and I tried everything to "muffle" it so the neighbors wouldn't be kept awake. I ended up draping 2 towels over the crockpot, but then I couldn't sleep well for fear of a fire.