Hello! I am trying to book a hotel with the Springhill Suites by Marriott Seattle Downtown/ S Lake Union for a weekend trip with my friends. I am currently 20 years old but I read on expedia that you have to be 21 to checked in. I also read online that the minimum checkin for Marriott hotels is 18. Can I get any confirmation about the age? If the age is 21, any other suggestions on other hotels that allow 20 years old check in?