Club Sapphire is a private lifestyle club in Tukwila, sitting between Seattle, Bellevue and SeaTac airport — a location it picked deliberately for members travelling in. The building runs to about 10,000 square feet of party space, with room to socialise and dance and, in the club's own words, a variety of seductive playrooms for both private and group intimacy. It describes the atmosphere as confidential, provocative and comfortable, with no pressure on anyone beyond having a good evening.

It opens for its own programmed nights rather than to a weekly schedule, and the calendar has range: naughty karaoke, an Everything Unicorn party, a Shibari Sunday, and a Swinging 101 session for people curious about the lifestyle. Members can keep a private locker in its Side Piece Locker Lounge between parties.

Membership is required to attend anything, and the process is deliberately simple — apply online, confirm your email, and come. One-week memberships exist for newcomers and visitors, and both membership and event fees can be paid at the door. A first visit includes a free orientation, available from opening until two hours before close, with no obligation to stay; photo ID is required. The house rules are short and clear: no photography or phones anywhere in the social areas or playrooms, respect for every background and orientation, and — put exactly this way — don't be creepy. Some special events run at hotels or resorts, where the host venue's own rules apply.