Anne Frank writes about the night stay in her diary entry of Tuesday 20 October 1942.
"We had lots of fun on Monday. Miep and Jan spent the night with us. Margot and I slept in Father and Mother's room for the night so the Gieses could have our beds. The menu was drawn up in their honor, and the meal was delicious. The festivities were briefly interrupted when Father's lamp caused a short circuit and we were suddenly plunged into darkness. What were we to do? We did have fuses, but the fuse box was at the rear of the dark warehouse, which made this a particularly unpleasant job at night. Still, the men ventured forth, and ten minutes later we were able to put away the candles.
I was up early this morning. Jan was already dressed. Since he had to leave at eight-thirty, he was upstairs eating breakfast by eight. Miep was busy getting dressed, and I found her in her undershirt when I came in. She wears the same kind of long underwear I do when she bicycles. Margot and I threw on our clothes as well and were upstairs earlier than usual. After a pleasant breakfast, Miep headed downstairs. It was pouring outside and she was glad she didn't have to bicycle to work. Daddy and I made the beds, and afterward I learned five irregular French verbs. Quite industrious, don't you think?”
Quoted from: Anne Frank, The Diary of a Young Girl. The Definitive Edition Viking, an imprint of Penguin books Ltd. London in association with The Folio Society 2006