An illumination device with wake-up and/or fall-asleep functionality is disclosed. The illumination devices comprises at least one controllable light source； a control device for controlling the light source, wherein in a steady mode, color and intensity of the output light are maintained constant at a steady color value and a steady intensity value and in a wake-up mode, the intensity of the output light is gradually increased from zero to the steady intensity value and in a fall-asleep mode, the intensity of the output light is gradually decreased from the steady intensity value to zero.
