Stief & Glücklich is a coaching brand founded by Sally Matthes, a bonusmum who supports women navigating life in blended families. Drawing on her own experience and more than six years as a bonusmum, Sally helps clients address feelings of invisibility, conflict, exclusion and uncertainty, and find a stronger sense of belonging. Her approach is clear, direct and empathetic, with a focus on communication, boundaries and making decisions as a couple.

The brand offers several ways to get support. The ITS Bundle provides three self-guided resources on belonging, communication and setting limits. BeyondBonus is a 10-week program with video modules, worksheets, email support and 12 months of access. For more personal support, Sally offers one-to-one coaching with six intensive sessions and guidance between meetings. Stief & Glücklich also shares practical articles and hosts Bonusgeflüster, a podcast featuring honest stories and conversations about blended-family life. Its services are designed for bonusmums who want to move beyond simply coping and create a more fulfilling place within their family.