So I'm confused by this definition of stay. I'm going out to Denver suburbs for a client and there are several Marriott properties I can choose from that are close.

And I'll be out there for 7 nights.

If I do...
Hotel A night 1, then Hotel B night 2 does that = 1 bonus night, and back to Hotel A and so on?

So for my 7 nights I could qualify for my 3 free nights in 6 hotel swaps? Or is it simply number of days? And I could stay at hotel all 7 nights and get the 3 bonus nights?