US Patent 11874027 Rechargeable, portable heating device for warming user

A portable heating device for delivering warm air to the extremities of a user, for increasingly comfort and/or facilitating sleep. The portable heating device includes a heating module situated within a case, and a retractable and detachable hose that is able to attached to a hot air-releasing vent on the heating module to deliver the hot air to a desired space. The portable case includes an electronic display and a control unit for setting a desired temperature set point. The heating module is able to be powered by either a cable connected to an external power source and/or one or more internal batteries within the heating module.