Hailee Steinfeld Reveals Daughter’s Name in Heartfelt Letter to Her ‘Sweet Girl’

Hailee Steinfeld has joyfully shared details about her new daughter, who she has named Harper Haize Allen, in a touching letter penned on her Substack platform, Beau Society. The actress and her husband, NFL quarterback Josh Allen, welcomed their first child together in April 2025, shortly after announcing their pregnancy in December 2024.

In her heartfelt message to her newborn, dated 19 June, Steinfeld expressed her overwhelming feelings of gratitude and astonishment at becoming a mother. She reflected on the early days of parenthood, stating, “You’ve been here for only a short while now, and somehow it feels as though you’ve always been ours.” The 29-year-old actress went on to describe the beautiful yet exhausting experience of motherhood, hinting at the duality of time, which she now measures in moments, rather than months or years.

Steinfeld and Allen, who tied the knot in Santa Barbara, California in May 2024, have embraced their new roles with enthusiasm. The actress conveyed the profound joys and challenges of caring for a newborn, likening the experience to a rollercoaster of emotions, from exhaustion to elation. “These last few months have been beautiful and exhausting. Sacred and so special. The longest days and the shortest season all at once,” she wrote.

The letter continued with Steinfeld’s reflections on the nature of motherhood. She remarked on how the experience changes one’s perspective, saying, “It isn’t always in the big moments.” Instead, she finds joy in the mundane details of daily life, “in ounces, naps missed and naps miraculously taken, in diaper changes.” Such moments reveal to her that motherhood is predominantly comprised of the small triumphs that accumulate over time.

Steinfeld also shared candid thoughts about the fleeting nature of infancy. “Everyone tells me not to blink. Now I understand why,” she mused, reflecting on the tiny milestones she has already begun to miss, such as those late-night feedings and the remarkably small diapers that now seem enormous in hindsight. Her words evoke the bittersweet reality that a child’s growth can be both joyous and melancholic.

Alongside her reflections on Harper, Steinfeld expressed a longing for what the future holds. She mentioned dreaming of the day her daughter might ask her to braid her hair, while simultaneously wishing that Harper’s tiny features would remain unchanged forever. This emotional tug-of-war encapsulates the essence of parenthood, as Steinfeld articulated, “I’ve learned that motherhood isn’t made up of grand moments as much as the tiny, precious ones.”

Just prior to sharing her letter, Steinfeld engaged with fans during a livestream on Substack. During this interaction, she poignantly stated that her focus for the summer revolves entirely around her daughter, acknowledging the uniqueness of this time in Harper’s life. “This will be the only summer that I have her in my arms,” she noted, reinforcing her desire to cherish each moment as time swiftly marches forward.

The actress’s commitment to being present in her daughter’s early months echoes a sentiment frequently shared among new parents: life moves quickly. Steinfeld’s emphasis on soaking up every experience underscores her understanding of the importance of treasuring these fleeting moments.

The couple’s journey into parenthood has only just begun, but they are poised to navigate the challenges and rewards together. With a new chapter unfolding, Hailee Steinfeld has embraced the beauty of motherhood, encapsulating her feelings in a way that many can relate to, allowing her fans a glimpse into the love and joy she finds in her new role as a mother.