I’m pretty sure I didn’t dream this. It would have been on a TV show, most likely a comedy, probably mid-60s to early 70s. It was a man saying “Squeezy go sleepy” and I think the context was rendering someone unconscious without actually knocking them out. It might have been the character’s catch phrase.
Google was no help. And no, it wasn’t Spock. Maybe it was a sitcom spoofing Star Trek? Does this ring any bells?
The phrase doesn’t ring a bell, but there was a TV show called “Quark” in the late 70s with Richard Benjamin that was a sci-fi spoof and there was a character who was sort of a Spock knock-off. Does that help at all?
The closest thing I can think of was an episode of The Lucy Show “Lucy and Pat Collins” in which *real-life celebrity hypnotist Pat Collins puts Mr. Mooney by saying something like “Nighty-night snooky-ookems.” (It’s been half a century since I would have seen it, so I don’t recall the exact keywords.)
*To the extent that ‘hypnotism’ as presented is real.
It really sounds like you guys misheard the actual line or are just remembering it differently from what was actually said. That’s really common with tv shows we watched as kids.