Implementing Sleep in CF

So I'm trying to import around 10,000 records through loops in CF7, because I have to tack in some additional info for each record... fun. I'd like to sleep the process for a bit, but CF7 doesn't have a built in method for that... Java objects to the rescue.

Java Object Sleep in CF7

But, as someone at House of Fusion warns:

[The] thread [is] in the queue sleeping, and so if you have configged CF to use max 20 CF threads, and you sleep 20 threads, no requests will be handled by the server unless one of the threads gets free.

Below you can find the syntax for doing this in CF8, as mentioned by Jeff. Thanks for pointing that out Jeff!