Sleep "-directly refers to the core function (sleep aid), reducing the user's cognitive threshold;
"Stone"-inspired by the product's rounded runway shape and silicone skin-friendly texture, a metaphor for the pebbles of nature:

Form association: warm arc, no edges and corners design, transfer security and affinity;

Psychological suggestion: the stone symbolizes stability and durability, which is in line with the product positioning of "long-term sleep aid;

Natural Healing: Take away the cold feeling of electronic equipment and return to the original relaxed state.
① Natural bionic × Non-sensitization of science and technology
Modeling: abandon the mechanical sense of traditional medical devices and adopt organic forms (such as pebbles and water droplets) to reduce the user's psychological resistance to "treatment;

Material:

The back electroplating parts (positive and negative conductive) are designed as hidden contacts, and the surface is matte to avoid the cold touch of metal;

The body texture simulates the fine texture of the rock, enhancing the natural tactile feedback when holding.

② Functional metaphor
The conductive property of "stone": echoing the current conduction function of the back plating parts, metaphorically "regulating human body rhythm through natural energy (such as earth conduction)";

12 gear adjustment: guide users into deep sleep gradually like "stone steps", and digital display gives precise control.