I only wear one sock to bed @kmakm.
I remember some bloke on an online dating site, a few years ago, asking what I wore to bed, thinking that was going to elicit some sort of titillating response. A beanie and one sock.
Seems that was a bit of a passion killer, but the sock keeps my 'bad' foot warm and gives the ''good" foot something fuzzy to cuddle up to while still having the option to freewheel it when the thermostat goes bonkers. The beanie, well, it's minus a gazillion degrees in my house most nights during winter and it's easier to don and discard a hat, in time with the aforementioned thermostat, than a doona.