Marriott Bonvoy Cobalt is an ultra-exclusive, invitation-only tier that is not officially listed in the standard program hierarchy. Unlike Ambassador Elite, which requires 100 nights and a specific spending threshold, you cannot "earn" Cobalt status through stays alone. This status is generally reserved for high-profile individuals, senior corporate executives of Marriott’s largest global partners, and people with significant social or professional influence. To become a Cobalt member, you must be nominated by a Marriott employee and then approved by the President and CEO of Marriott International. Because of its secretive nature, the exact benefits are not publicly advertised, but they are known to include "above and beyond" personalized service, such as being met by the General Manager upon arrival, guaranteed upgrades to the best available suites (often including Presidential suites), and specialized gifts or amenities tailored to the member's specific preferences. It is essentially the "VIP" level of the hotel world, designed to ensure that the brand’s most influential patrons receive a flawless and highly customized experience.