Q:
(A) I had a shower at night. I washed my slippers and feet whilst in the shower.
(B) Then I went out of the house for just over 2 hours wearing the same slippers. When I returned home it is most likely that, by that time, my slippers were dry.
(C) I then got in to the sleeping bag, which I have borrowed from my parents home and which I am using at my house. At the time I went to sleep in the sleeping bag it is most likely that my feet were dry. At the time of sleeping, I thought to myself, when I wake up in the morning I must wash my feet and slippers again as a precautionary measure.