The Basic is perfect if you plan to use tranquileyesTM during sleep. Padded with comfortable memory foam, tranquileyesTM naturally shelter eyes from drafts at night while keeping moisture in. They also create complete darkness which helps stimulate the pineal gland, releasing melatonin to promote deep sleep and relaxation. Great for air travel and power naps too!Learn more:http://www.eyeeco.com/product/iproduct_id/7/_eyeeco_basic_kit.html