There is no single version of "Sandman" in the United States. The only time it was on a 45 was as the B-side to "A Horse With No Name" in three countries---the UK, France and Australia.OK, I see the problem. The single version fades out a minute early just after the freeform part begins. It isn't as noticeable as the musical ending in The Carpenters' "Goodbye to Love" which seems to go on forever and reminds the listener that they are actually a Rock band after all!
But, checking further, it looks like that's the version (early fade) that got used on their Greatest Hits album, "History".
The big difference between "Sandman" and "Goodbye To Love" is that this was from America's debut album---this was part of who the band were from the jump. "A Horse With No Name" showed off the Neil Young influences. Warners chose "I Need You" as the follow-up single, which seemed to cast a die. If "Sandman" had been the follow-up, either full-length or edited in the middle to allow the guitar at the end, the next album ("Homecoming") might have had a harder edge.
"Goodbye To Love" was from Carpenters' fourth album, was their tenth single, all but two of which had gone top five and Richard Carpenter wanted to rebel against the image that they had that---was pretty much accurate. They weren't a rock band, had never done anything like this before, and never did again.
