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During a travel to foreign countries, I sometimes wake up at the middle of the night because of jet lag.
Waking up at midnight does not bother me.
I think that it gives me a good chance to read books.
I enjoy a midnight concentrating on reading in the quiet room of the hotel of the foreign country.
As I got 3 day jet lag during Toronto tour, I read all books which I had brought.
I recognized that 20 books were not enough for my 6 day trip.