Wear your Zeta Insoles as long as they are comfortable and no longer. Some people wear their Zeta Insoles all day, every day. Others wear their Zeta Insoles only in their slippers at night. If your feet ever feel sore while wearing the zeta insoles, simply remove them and place them back in your shoes later. Many tender footed users will wear thicker socks to make the product more comfortable for a longer period of time.