For anyone whose peripheral neuropathy causes icy, or icy hot feet after going to bed, it was suggested to me that when you go to bed and lie flat, that is a big change in blood flow to the feet. When standing or sitting most of the day, blood pools to the feet and then when at night you bring your feet up in bed to a horizontal position, all of a sudden the feet are temporarily starved of blood flow causing the icy painful feeling. I have a mechanical bed frame so I tried simply raising the head of my bed enough where I could still be comfortable sleeping but was not flat. I think about 30degrees or a little more. This is closer to a standing position than lying flat. Sure enough I have not gotten any icy cold/hot feeling in my feet since I started doing this! I have found that mechanical bed frame SO worth the money for a number of reasons.