I'm trying to book a reward night at one of the two downtown historic district Marriott properties in Charleston, SC. I'm running in to this same problem when I try to book just Friday night (Nov. 16th), neither of those hotels shows up, however if I do Thursday and Friday, then they do show up. I'm not sure yet if I'll be able to go on Thursday or if I'll have to wait until Friday. If I book both nights as a reward stay and then want to cancel the Thursday night later, would I get the points back? Would they cancel the whole stay? If I call the hotel directly would they be able to override the restriction? This is the first time I'm using points for Marriott, so I'm not entirely sure how the whole process works yet.