I think its by "Stash", called "Awake". Its makes a dark, strong tea thats great for first thing in the morning, hence the name.
I also like their "Calm" tea. Its got camemille(?) with a hint of mint. Really nice for the end of the day.
Real chai: Use looseleaf Ketepa (very hard to find), Kericho Gold off amazon is a decent substitute, or go to your local Indian store and find some black looseleaf there. While you are there, pick up some chai masala. If you can't find chai masala, use some ginger, cardamom, cinnamon, and cloves.
Then, fill a saucepan with half water, half whole milk. Just before it boils, add a spoonful of tealeaves and the spices. Brew for a couple of minutes, stirring over med heat. If you don't have a tea sieve, then let it rest for a minute without stirring so the leaves settle. Pour yourself a cup of authentic chai, add sugar if needed.
It sounds complicated, but takes all of ten minutes and you can multitask.
Fortnum and Mason Royal Blend
F&M Queen Anne & F&M English Breakfast are also very good