One of the few episodes that doesn't feature Paddy's Pub.
Mac is unable to recognize the chirping of a smoke detector because his old apartment did not have one, considering one did not sound in "The Gang Squashes Their Beefs" when his apartment caught fire.
Steve Witting, who plays the suburban neighbor Wally, previously appeared with Danny DeVito in Batman Returns (1992). He plays the image consultant who gets his nose bitten by DeVito.
The shirt that Mac is wearing throughout the episode has a feather logo for "Robinhood", the stock trading startup in which Rob McElhenney is an investor.
The beeping sound is that of a smoke detector signaling that its battery is low. All Mac and Dennis had to do was change the battery (smoke detectors typically take inexpensive 9V or AA batteries) and they would have been able to sleep.