A stay-at-home mom founded Chelsea TreeHouse, a 9,000-square-foot indoor “unplugged” play space free of any distracting video games or other electronics. The play area is outfitted with slides, swings, bridges, and a multilevel climbing structure, and basketball hoops allows aspiring players to practice slam dunks within eyesight of parents or guardians lounging in leather seating. For everyday nourishment, TreeHouse’s full-service cafe replenishes energy with healthy bites such as veggies, yogurt, and cheese while parents enjoy more adult fare, such as sandwiches, salads, soups, and Zingerman’s Coffee.