Stay healthy with deeper sleep. Now you can enjoy a rare dark Himalayan Salt Lamp for your bedroom cutting out the light that other salt lamps emit. No bright light with these! Actually, little-to-no light will show through. They must be left on and warm 24/7 for best results. Improves quality sleep, let's you breathe fresh, clean air, and many of our customers say it helps with less snoring too! No two salt lamps are alike however, equally beautiful and beneficial! Weight 5 to 7lbs. Covers approximately 7 to 8 ft radius, so keep them close to your bed for concentrated coverage. For couples, we recommend one for each side of the bed.