NightFit

NightFit is a mobile + web AI-assisted fit and comfort planner for lingerie and sleepwear shopping. Users enter a few measurements, preferred coverage, fabric sensitivities (itchy lace, heat retention, elastic marks), and sleep habits (side sleeper, hot sleeper). The app then translates that into brand- and product-specific size recommendations, “comfort risk” flags, and a short list of items likely to work. It also learns from returns and post-wear feedback (“band rolled,” “cups gaped,” “waist dug in”) to improve future picks. Retailers can integrate a lightweight widget that reduces size-related returns and increases conversion, while consumers get a single profile that works across stores. This is not magic: it won’t perfectly predict fit for every body, but it can meaningfully cut bad purchases by focusing on common failure points and realistic constraints.