I've had such a pleasure working with Egyptian Cotton Shirts. They sent me a beautiful All Cotton Sleep Shirt to review. Instead of my usual pink, I chose a periwinkle color.
There were approximately 30 colors to choose from. I would recommend sizing up one size, but perhaps I just don't like anything even a bit form fitting. It has a nice, thick, soft finish, with the hems being very well stitched.
They also have tee shirts and men's tees. I highly recommend them. The prices are fantastic, and they have great customer service. These shirts are extremely high quality-you can't go wrong!
You can purchase sleep shirts and more from: http://www.egyptiancottontshirts.com