I have 3 questions this time.
I'll put in this preface in case it helps.
***
The cast is going back to LA from New York, by train.
One of these jokes involves sleeping in a train berth, which I'm not completely familiar with. Just in case it is a joke that "paid off" from earlier info, I'm noting the following:
Early on, people are commenting about Jack being cheap about paying for berths: Mary must share hers with a stranger, Don Wilson and his wife must share one, even though Don is quite large; and Dennis must share one with Jack. Jack snored all night, keeping Dennis awake.
***
1. The men are all using the washroom in the train.
Jack: Hand me my robe, Don. It's that green one with "seven up" on the back.
[extended laugh, even from the cast]
***
Now I know that 7-Up's bottles were green, so I'm wondering if this is related.
The closest I can guess is a boxer who wears a company logo on the back of his robe, or a hotel that puts their logo on their robes, but I can't connect it to Jack.
***
2. Everyone is going to bed.
Jack: Well, here's our berth, Dennis. Crawl in.
Dennis: Nothin' doin'! I get the outside tonight!
JB: You had the outside last night. Don't you remember? You fell out 4 times. Now get in there.
Mary: Quiet, we're trying to sleep!
JB: Get in there, kid, and stop making trouble.
DD: Okay. Gee whiz, Mr. Benny, there's no room here.
JB: Put the oranges in the hammock. [A reference to an earlier joke about Jack's oranges.]
DD: Boy, I hope I can sleep tonight.
JB: You'll sleep. I know I will. I'm tired. Are you comfy, Dennis?
DD: Yeah, I'm all right.
JB: (getting sleepy) I'll be good to get home again. [referring to a child he met on the train earlier, who was going to Hollywood to work for Bob Hope] You know that kid might not be a bad gag man at that. Hope he shows up for breakfast.
Boy , it feels good to stretch out here.
DD: Darn it!
[pause]
Pardon me, Mr. Benny.
JB: There you go, crawling over me AGAIN!
[long laugh and applause]
***
I can guess that 2 in a berth must sleep side-by-side, so since Dennis got in first, he would have to crawl over Jack to get out. And I'm guessing that the "Darn it!" means something particular, which I won't put here in case it prevents another idea from popping into people's heads.
Even with all that, I still can't understand quite why Jack's line got such a big laugh. I'm going to listen again in case it is a payoff for an earlier joke, but I'd still like to hear if anyone has ideas.
***
3. Jack starts to snore, like he did on previous nights.
DD: Here we go again!
Jack starts to alternate snoring with whistles on the exhale.
DD: Oh, boy, whistles this time.
More snoring and whistling.
DD: Well, I guess I'd better start counting sheep.
One.... two.... three.... four... No, that's a police dog.
[big laugh from audience].