- Air Optix ® Night & Day lenses are a breakthrough in soft contact lenses, and represent a new option for contact lens convenience and comfort. Air Optix ® Night & Day lenses may be prescribed for daily wear or extended wear for up to 30 nights of continuous wear. This is possible because Night and Day lenses are made of a lens material that provides a high level of oxygen to your eyes and has been surface treated to wet with your tears. These revolutionary lenses are so breathable, allowing six times more oxygen through the lens than traditional soft lenses. Up to thirty days of continuous, natural vision means complete day-to-day freedom - no daily insertion and removal, no cleaning and no lens care product expense. They're so comfortable, you might even forget you're wearing them. Plus, you'll see clearly all the time - even when you get up in the middle of the night.