Found! After searching for over four years for the perfect slipper I finally found the one!  Here are the criteria of my search:
1. Size. I wear size 11(women) and often slippers run small so find a true size 11 has been a challenge.
2. Wide toe bed. I have a hard time finding slippers that don't pinch or squish my toes
3. Needed to be a bootie or at least cover my ankle. (I have  Raynaud's, so my feet and ankles are often cold)
4. Can't have sherpa or shearling lining, as these make my feet to hot and sweating
5. Sole needs be non-slip
6. I have found that down filling works well on keeping my just the right temp.
I had the perfect pair of slippers I purchased from Lands End over 8 years ago. They bit the dust a few years back and I have been on the search for a replacement ever since. I don't know how many pairs of slippers I have ordered and have been unhappy with. But today, today that search ended with the arrival of this lovely comfy pair of slippers. They are so comfortable! I love them.

The only negative is the color. The color Dusk online looked like the clear, light sky blue. However the slippers are a bit darker and grayer, almost a Williamsburg blue. Other than that they are perfect!