I bet the toe cover would work.
Re: the foot hurting when you woke up today. I found that this was occurring when my stress fracture/toe was healing and near the completion of the process. Not sure why this happens, though. My foot (the one I hurt) was aching when I got out of bed today, too and the only reason I can think of is I have new shoes for the gym and I did a lot of jumping in tabata yesterday. I had the shoes last week, too, but there was a sub and the class was different.
Good luck with the boot. It would drive me nuts.