Sleep soundly with Blackmores Sleep Sound Magnesium powder. This dietary sleep supplement is a triple-action formula that relieves restless sleep. Blackmores Sleep Sound Magnesium provides a high dose, rapidly absorbed magnesium complex in the form of MagAbsorb+™. Magnesium supports mind relaxation, relieves restless sleep and is traditionally used in Western herbal medicine to support healthy sleeping patterns. Adults: Take 7.5 g (one level scoop) once a day, 30 minutes to one hour before bedtime.