You will also have two completely separate memberships, and as the previous poster said, to pool points for a single night would require a transfer. And as Doc said, you need to track the banking windows. If you're looking at just a small add-on for a few points, I would stick with my original use year, and request Member Accounting to add it to my existing membership but it must be titled exactly the same way as your existing contract to merge it into your current membership number.