This box spring works great and is easy to set up. Just doesn't work with the new bed we got.
https://www.amazon.com/dp/B0077UCFXG
It's a split queen so cubes in two pieces. Ideal for bedrooms where getting a normal box spring in is a challenge (e.g. basement apartments)
Split queen collapsible box spring (Petworth)
This offer has been gifted to someone and is no longer available.