Others have mentioned similar, though we desperately need you to fill out those categories. Sleepwear (including a decent range of bathrobes) that's not all too cutsie or childish. It'd be great for the underwear if you could carry Modibodi or similar period underwear.
Also, great quality stockings and tights - perhaps pick up some of the snag tights range.
For basics, even carrying plus size bonds shirts and singlets would be great.