NOCTURNE — Premium Mattress Configuration Study

NOCTURNE — A made-to-order choice, made clear

An independent fictional mattress-commerce study, built to show how premium product presentation and dependable configuration can work together. Original AI-assisted product artwork, restrained typography and a responsive product-detail layout keep attention on the product and the buying decision.

The working prototype supports size and feel selection, an optional King split feel, explicit unavailable combinations and an exact-price review. A one-item demonstration bag preserves the reviewed options; replacing its contents requires an explicit action.

The quality is in the transitions: switching away from King removes the split surcharge with an explanation, unavailable combinations cannot progress, changing the current selection leaves the saved bag item intact, and price changes are included in the accessible live summary.

Desktop interactions and actual 390- and 320-pixel layouts were checked, including the narrow-screen review dialog, keyboard focus, replacement and removal. Independent review produced fixes before publication.

I direct scope and review; advanced AI supports design, artwork, implementation and testing. Built with HTML, CSS and JavaScript. This is concept work, not a client launch or evidence of conversion uplift. Products, prices and lead times are fictional; the bag is simulated. No live checkout, Shopify, payments, inventory or CRM integration is represented.

These are rendered preview images. Editable source, reusable assets and the private working prototype are not part of this public sample.