Where can I get a good quality cotton duvet cover set online?

[tutu100]

I need a 100% cotton duvet cover and pillowcases. My bedroom is chocolate brown and a sort of turqouisey teal colour. I can not seem to find anything that meets my requirements. Have tried the normal John Lewis, Debenhams, House of Fraser, M&S and all to no avail, a friend reccomended Northern Nights on QVC, it looks lovely stuff, but not the colours I want.

I am happy to spend quite a bit on this as my last lot of bedding lasted 15 years and I like my bedding to feel really nice. Also I find poly cotton irritates my excema.

Where else can I try? Would prefer online as have panic attacks and so would prefer to avoid having to go to actual shops.

Good quality, quick service, and there's a sale on. Any good?

I have also used these people, less colour choice (but fantastic quality, I looooove my 1000 tc set!)

Thank you OldLadyKnowsNothing, lovely sites but not quite dark enough colourwise. However I will order some new towels from the 1st site as they seem really good value.