Affordable space for commuter, 1 night/week

Seeking a cheap space for 1 night each week, a regular night of the week. Looking for a quiet space, no frills, within 5 miles of Stanford campus, in a good location (i.e. not East Palo Alto). I'm Stanford staff, with postgrad qualifications in biological psychology. Please serious inquiries looking for an easy, temporary, routine house guest and willing to accept cash of $30/night ($120/month, month-to-month). Personal references available, socially and financially responsible, great credit.