I will need 3-4 extra nights before end of year to get to SPG75.

I am considering a mattress run, which I have never done before.

Are you aware of any SPG Category 1 hotel that would be fine with a 'remote' check-in? On either a prepaid stay or a points stay?
Maybe one of the keyless hotels would work?

Do you have any other ideas that would get me the nights I need? Staying in my regular hotels is too expensive, not an option.

thank you!