In 6 trips, we have never seen an umbrella in our room. However, there is tissue. You may still want to take your home as it is standard issue, hotel tissue. We do pack a small collapsible umbrella. With CIT buildings being almost completely connected, even if it rains, you may not need an umbrella. The exception would be if you are in building 1 or you are going to dinner at Bayside. Enjoy your trip. We have 220 days until trip #7.