To me, the docs answer it pretty clearly. The defined directories persist until you destroy(). The part that's unclear to me is how billing works for a sandbox

To me, the docs answer it pretty clearly. The defined directories persist until you destroy(). The part that's unclear to me is how billing works for a sandbox's disk that's asleep, because container disks are ephemeral and don't survive sleep[2] but the sandbox pricing points you to containers which says "Charges stop after the container instance goes to sleep". https://developers.cloudflare.com/sandbox/concepts/sandboxes/#idle https://developers.cloudflare.com/sandbox/concepts/sandboxes... https://developers.cloudflare.com/sandbox/concepts/sandboxes/#persistence https://developers.cloudflare.com/sandbox/concepts/sandboxes... [2] https://developers.cloudflare.com/containers/faq/#is-disk-persistent-what-happens-to-my-disk-when-my-container-sleeps https://developers.cloudflare.com/containers/faq/#is-disk-pe...