Is your apartment making you anxious without you realizing it? The Sanctuary Formula is the science-backed, budget-friendly guide to nervous-system-friendly interior design for small apartments, dorms, and tiny rooms. Discover the three-layer lighting system, warm Kelvin color temperatures, acoustic softness strategies, and the S.A.N.C.T.U.A.R.Y. framework that transforms how any room feels — no renovation required. Whether you have $50 or $500, this guide delivers high-impact, low-cost atmosphere changes that improve sleep, reduce stress, and make your space feel expensive and emotionally safe every single day.