First up, thanks to the poster who put me onto Powell Craft. I am likely to bankrupt myself imminently. In addition to P&C I have discovered Pickles & Lillies who sell on Ebay, pure cotton nighties and pyjamas (for £8.50 or nearest offer but £8.50 is already a super bargain). They wear and wash up really well and are excellent quality.
There is also a website picklesandlillies.co.uk
Just thought i'd share this much more purse friendly and comparable quality wise (if not even better quality) than Powell Craft (Though their stuff is utterly delicious too).