In kindergarten nap time was to spread out a mat & lay quietly. I do not think anyone got any actual sleep. But once I fell asleep on the merry-go-round during afternoon recess. In a daze I heard kids call out after the bell & I saw the last few kids go in. When I awoke the merry-go-round had stopped & no one was around. I snuck back into school at nap time & nabbed by my teacher. I was stood in the corner for the remainder of nap time. Let this be a lesson: Do not get caught sleeping during nap time.
PostScript: I don't think kindergartens (& 1st grade) does a nap time anymore and it may be a afternoon kindergaten thing.