I have a niece who measures time by the number of “sleeps”. For example, she will say it is three more sleeps before Christmas.
It is three more sleeps before I arrive in Rwanda. In fact, for each of the next four nights I will be sleeping in a different bed. Tonight I am sleeping in the hospital anesthesiology on-call room (ugh), tomorrow I sleep at home, the next day I will trying to sleep on the plane (ugh), and the night after that I will be sleeping in Rwanda!