I think, like brk mentioned, the cost of sheets is not terribly high and neither is the burden of washing them. For me to be interested in a service like this it would need to offer some combination of the following: - Cheaper than buying new sheets (offering expensive sheets at much less than their retail cost per month would be a nice selling point) - Someone to put them on my bed for me (honestly I don't mind doing laundry, but I hate making my bed. go figure) - Free upgrade to more pillow cases. I sleep with 8 king-sized pillows and I'm not ashamed to admit it. - A selectable scent option. If I could get sheets guaranteed to smell like fresh coffee for the week until I get new ones, I'd be seriously interested. - More colors and patterns. White sheets feel like a hotel, I'd definitely want to mix it up.

You might want to also consider adding in fresh pillows as an add-on, as really nice pillows can be costly and having the pillows themselves be constantly washed and fluffed would be nice.

Cool idea though, cheers.