Should I take this job? It involves My girlfriend's parents...?

Ok, so they offered me a job watching their house while they're away for a week. My girlfriend and her parents are going on vacation. Her mom asked me to sleep at their house for a week and take care of all the maintenance stuff.... would it be awkward to sleep there? we've been together 2 years and aren't intimate, nor will we be til marriage.... would it be weird to sleep at her house?