You can also check Hotwire for the date of your Seattle overnight for a 4-star hotel in the Pike Place area. For about 120 bucks, I have been booked at the Kimpton Vintage Park, Westin, Sheraton, and Grand Hyatt hotels. The downside would be that you don't collect points on Hotwire stays, so it's better for occasional use. If you'd like to stay on the waterfront and are bit more flexible on price, an oceanfront room overlooking Elliott Bay at the Edgewater is a fun place to hang your hat. Lots of rock bands have stayed there over the years giving it an interesting historical footnote.