nighties, buttons and ripples

I needed to make myself some new nighties as the ones I was wearing were really getting past their best. My problem is, I need the nighties to be made of cotton - no polycotton will do. Night sweats are a pest and cotton helps a wee bit.Anyway, my local fabric shop only had a few cottons and they were £6.99 per metre. 2.3 metres x £7 didn't make for a cheap nightie so I had almost given up on