Dinner in Rebun island

I ate dinner which I'd bought at market in Rishiri island. It was a cheap lunch box.
After I ate it, I started to sleep early.
I was tired because rainy climbing of Mt. Rishir-san. And I could't get enough time to sleep last night.
In my plan, I would have to wake up 02:00 AM in next morning. Sleeping was important job for climbing.