Place to sleep for only portion of each week.

I am looking for a place to stay for a portion of the week, mostly Monday and Tuesday nights. I don't need my own room, or a full room. I am only looking for a place to sleep and shower. I would be willing to take a portion of a room that would fit a small portable mattress and I could put some dividers up for privacy. These things can be dismantled and stored against the wall or in a corner when I am not around.

I am a male postdoc at Stanford and commute to campus mostly Monday, Tuesday, and Wednesday, hence my inquiry about staying Monday and Tuesday nights. Any leads would be appreciated. Thank you!