A headset includes a body to be worn by a late term pregnant female. It has a light source carried by the body that directs light into the eyes of the late term pregnant human female for reducing uterine contractions occurring at night in the late term pregnant human female and suppressing the regular nocturnal endogenous melatonin secretions of the late-term pregnant human female experiencing uterine contractions. The light source directs into the eyes of the pregnant human female intermittently during the night blue light having a wavelength of about 450 to 500 nm and an intensity of about 1,000 to 10,000 lux.
