Are you able to travel anywhere for free?

You didn't mention any locations.

But to get night credit, you have to check in in person. You don't need to check out in person, but you do need to check in in person.

So your question is impossible to answer which location info provided.

Meanwhile, have you ever done a Rewarding Event meeting? If not, you can get 10 night credit for the first one only (we don't know if first one of the year or first one ever). One meeting may cost a lot less than 9 separate nights. See this thread for more:

https://www.flyertalk.com/forum/marr...18-2018-a.html