I love asking children to write about their dreams. In this 'Dream' many things happen. All of them are not necessarily pleasant and some are set in the past.
This animation can be used to write a narrative in either the 1st or 3rd person.
Children could write stories with flashbacks. They wake up and then remember what they had dreamed about.
Perhaps in their 1st person story they keep drifting back into the dream and describing what they are seeing.
The opening scene seems to be someone jumping off a bed. The children could describe the scene without sharing where they are and then leave the reader on a cliffhanger after describing themselves stepping off into space.