You will find a lot of different ways people clean their supplies. It is an individual preference (some are more anal than others). I would not use antibacterial soap.
With my humidifier hose, I generally put a few drops of dawn and some vinegar in there followed by water and I make sure by moving the hose that the solution gets coated on the whole interior of the hose. Rinse well and hang up to dry. If the hose isn't dry and I am ready for bed, then I hook it up to the machine and turn it on and it finishes drying quickly. However, that is a rare instance because I have 2 sets of supplies that I switch off between.
So, in essence, it is just what your preference is (lavender anything isn't something that is found in this house lol)