B1's marathon sleep after 3D2N camp

B1's had her marathon sleep after she's back from her 3D2N GB camp in school.

From about 3pm to 1.40am, she slept through without waking up for bath or dinner. at 1.40am then she woke up and started asking,"how come I never eat anything?"

She said she slept at 12am on first night, and 3am on the second night,and had supper at 2am!

I thought they would have regular and very disciplined life in camp,say going to bed(which is sleeping in sleeping bag in school's hall). Never expected her to have only 3hour sleep on the last day.