User blog comment:Dragonmentor123/Is there a reason that Toothless might be the only night Fury?/@comment-4122072-20140825062415/@comment-7628730-20140826140537

I know Blu isn't seen having nightmares about nigel in the movies, but the Rio wiki says he still does. It is possible that the creator or one of the cast members of Rio has said this in a Q&A.