Also I wanted to follow up in case people are curious on what I've tried so far with socks: sometimes I play a game with myself where I throw a sock in the air (it should be a long one, such as one that would go up past your ankle) and then try to "catch" it with just my head. It seems really scary at first but it gets you used to soft contact to your head and with moving your head quickly. If it's a long sock it's also surprisingly easy to catch.