Very close to the convention center. 12ish minute walk to Pike Place Market. Around the corner are some nice bars that serve late-night food, and a deli if you need to grab anything. The bed is very very soft, so if you want a firm mattress just keep that in mind heh. Tip: The elevator nearby only goes down to the 4th floor, so take the elevator that's further down the hallway :)
If you need to store your luggage after checking out, there's a hostel right where Pike Place Market is and they charge $3 a bag.