Not sure I could get into the sarong per se, but during college I did sew up a cotton calf length kaftan to wear around the dorm in lieu of pants and shirts all the time. Much more comfortable than PJs and a robe too, but appropriate for just kicking around the house, dorm, pool, etc... Still have it somewhere in storage and I bet it would still fit. Now you have me thinking that maybe I need to get it out and start wearing it again.