You're right. We don't have a specific Cali King or Full size SFB blanket at the moment. But don't worry!
We designed our King size and our Twin size specifically to cover their respective neighbors.
A Cali King is measured at 72 inches wide by 84 inches long and the SFB King size measures in at 108 inches wide by 90 inches long which is more than enough room.
Similarly, the Full is measured at 54 inches wide by 74 inches tall and the Twin size SFB is 62 inches wide by 84 inches tall.
We've gotten feedback from customers all over that they've had no issue thus far!