Well, damn.
https://blog.spoonflower.com/2018/11/a-sweet-farewell-to-our-friends-at-sprout-patterns/

I mean, I've clearly had my issues with the service, but strictly from the performance on the website.

https://erniekdesigns.blogspot.com/2016/05/sprout-grows-appleton.html

(that pesky 3D preview that was never quite correct)
It would never line up the designs from one piece to another.

But it had it's virtues and only needed a little more coding love.
More about this when I find out (got more hems to hem right now).
For the moment, this is what we have to go on.

FAQ from Spoonflower webpage:

 Frequently Asked Questions  

  • When is the last day that I can order a Sprout Patterns project?
    • Sunday, December 16, 2018, 11:59 pm EST
  • When is the last day I can order a Sprout Patterns project with White Glove Service?
    • Sunday, December 16, 2018, 11:59 pm EST