I guess more about how/why it failed. It seems like you had iCloud backup set up. Did you happen to check that it had in fact backed up the night previous? Did it give you an error of some kind when attempting a restore from the cloud backup? How did cloud backups from different providers fail at the same time?
Those kind of things.
According to my phone, the backups happened. No error messages. I could even see my old backups from my phone* but I couldn’t restore from them. It was frustrating.
*settings—>Apple ID—>ICloud