An embodiment of the utility model disclosed a sleep-aiding apparatus, which comprises a surface case of the body and a bottom case of the body fastened with each other. The top of the surface case of the body is provided with a primary light-emitting spot, a switch button connected with the primary light-emitting spot, and a secondary light-emitting ring provided around the switch button the bottom case of the body is provided with a PCB circuit board which is connected with the light-emitting spot, the switch button and the secondary light-emitting ring on the surface case of the body LED lamp beads acting as the carrier are provided in the primary light-emitting spot and the secondary light-emitting ring, and light guide surfaces capable of releasing red lights having optical wavelengths ranging from 4 to 20 microns are provided outside the primary light-emitting spot and the secondary light-emitting ring innovation of the technical solution has broken through the restriction on the energy products such as necessity of being attached to a body and used within a close range so as to be influenced by the frequency vibration, the use of red lights of 630 nm as the carrier for conducting the energy can make use of the energy of the optical wavelength ranging from 4-20 micrometers more efficiently, conveniently and flexibly.