"Night of the Tibble" contains examples of:
- Book Ends: The same exact dark sky appears at the beginning of the episode and at the end, only with different scenarios.
- Call-Back: Timmy pretending to be Arthur saying “D.W., I didn’t take your snowball” is a reference to the episode “D.W’s Snow Mystery”.
- The Conscience: In this episode, James has two consciences, who tell him what to say to get out of the Tibbles' sleepover.
- Dramatic Thunder: Present in The Teaser when the Tibbles come looking for a new "victim" (sleepover guest), and in James' Imagine Spot of arriving at the Tibbles' sleepover, to emphasize how scary the Tibbles are from the other preschoolers' perspectives.
- Faux Horrific: The Tibbles' search for a guest for their sleepover is treated as if they were horror movie monsters looking for a new victim, complete with Dramatic Thunder and all the other preschoolers taking shelter inside the school when the wind changes direction, which they consider an omen of their arrival.
- Furry Reminder: When Timmy is wearing James' glasses (distorting his vision since they are not prescribed for him), he mistakes James for a stuffed rabbit, something which would be unlikely to happen with a human. He even pulls on James' rabbit ear.
- Good Angel, Bad Angel: James' consciences arguing over whether James telling the Tibbles that he doesn't want to attend their sleepover because he's not in the mood counts as lying is presented like this, with his own conscience, who suggests the aforementioned course of action to him, as the Bad Angel, and his conscience's own conscience, who calls out James' conscience because he thinks that's lying, as the Good Angel.
- If You Die, I Call Your Stuff: Played for Drama. D.W. asks James if she can have his fingerpaints if he doesn't survive the Tibbles' sleepover. It is obvious based on her expression and body language that she is not saying this in jest and is genuinely worried that James may die.
- Imagine Spot: James has one where the Tibbles sit him down on a machine called the "Flatter-fling" and use it to spin him around, which presumably would have sent him flying into the wall if the Imagine Spot had continued a bit longer, like what happened to the teddy bear that was on it before him.
- Person as Verb: Emily, believing James to be dead, mourns him saying he was "so Jamesy."
- Reports of My Death Were Greatly Exaggerated: When D.W. and Emily believe that James died during his sleepover with the Tibbles due to his absence from school, they go to give his mother flowers as condolences... only for the door of his house to be opened by James himself, who explains he was only absent because he had a stomachache from all the sweets he ate at the sleepover.
- Shout-Out: The episode title is one to various horror works titled Night of the [Something], such as Night of the Living Dead (1968).
- This Explains So Much: D.W. and Emily think that James did not survive the sleepover because he is not at school. Then they find out that he just missed school because he had a stomachache from all the sweets he ate at the Tibbles' sleepover, and suddenly, everything makes more sense to them.
- Thousand-Yard Stare: The afternoon before he goes to the Tibbles' sleepover, James just sits in the sandbox staring straight ahead, showing how scared he is of going to it.
- Toy Disguise: When the Tibbles come to the Read house to take James to their sleepover, D.W. hides him in her bedroom closet. When Timmy opens the closet, James pretends to be one of the stuffed toys in the closet, which Timmy falls for because his vision is distorted by wearing James' glasses since he does not need glasses. Doubles as a Furry Reminder as James is an anthropomorphic rabbit blending in as a stuffed one.
- Winged Humanoid: James' consciences are personified as tiny versions of him with wings.
Should we call this a rabbit court?
D.W. sets up a pretend legal firm at home. When Tommy is accused of stealing a cupcake from Bud, the preschoolers decide to put him on trial."Read and Flumberghast" contains examples of:
- Acting Unnatural: D.W. is caught off guard when Bud tells the Tibbles that D.W. is his lawyer.
- Courtroom Episode: D.W. and her friends play pretend court in this episode.
- Crocodile Tears: D.W. does this in many episodes. In this particular episode, it's to guilt-trip Arthur into participating in her pretend courtroom session.
- Given Name Reveal: This episode reveals Nadine's surname to be Flumberghast. Somehow, not even D.W. knew her last name before, despite Nadine being her Imaginary Friend.
- Imagine Spot: D.W. imagines using that regular box for many things like a submarine, or a mobile home for birds.
- Name and Name: "Read and Flumberghast." An unusual example in that they're surnames.
- Show Within a Show: Habeas Canine, Legal Beagle is an in-universe comic book series starring an anthropomorphic dog lawyer. Ladonna shows the first book, "Habeas Versus Fat Cat", to D.W. and Bud when they inquire her about what a lawyer does.
- Title Drop: When D.W. welcomes Bud to her pretend legal office, she calls it "Read and... Flumberghast."
