In her videotaped message to Val, Laura refers to the events of Season 1, Episode 4, "The Lie", in which Val talked Laura into doing the right thing.
This episode marks the final appearance of original series regular, Constance McCashin (Laura).
Michael York (Charles) did not appear in this episode.
Even though she departed the cast two episodes prior to this one, Julie Harris is featured in the opening credits for the last time in this episode.
In the summer of 1989, CBS reran this episode as part of its "Best of Knots Landing" series.
Actress Gigi Vorgan (Carol), who appeared as minor recurring character in season 5- she played a campaign aide to Sumner- returns for Laura's funeral.
Laura's last message to Karen opens up a new storyline when she asks Karen to sell her house- which is eventually bought by the Williams family a few episodes later.
In a humororous scene, Jill flips out when she realizes what became of her late brother Peter-his remains are kept in an urn on Sumner's coffee table and is pushed aside by mourner who wants to use the table to eat.
This episode ended with everyone watching Laura's last will and testament on videotape.
The episode title is an allusion to the children's book, Goodnight Moon, by Margaret Wise Brown. In this episode, Laura, on videotape, reads the book to her infant daughter, Meg, and says the final line in the book, "Good night, noises everywhere... "