I also had a personalized audio cassette tape of lullabies (I think it was a mail in gift from huggies or something) and I'm trying to track down any info about it...

Some of the lyrics were:
It's time to go to dreamland once again
and sail beside the rainbow till the end
I’ll be with you
The whole night through
And welcome the morning sun.

I can't remember much of the rest.

Thanks!