Is it possible to be allergic to leather? Because, every time I wake up with my shoes on I have a headache.
I think it's what you are doing BEFORE you fall asleep with your shoes on that may be giving you the headaches. Just sayin' ; )
Yeah. But why do you sleep with shoes on?
You wear your shoes to bed? Let the puppies breath that's why you get headaches.
Your falling asleep while drunk, and you forget to take your shoes off!