Ideally, the snuggle blanket you would be looking for is of a soft kind. If this is your first time to shop for a blanket, then you might want to visit your local store first. It is important that you feel the material first so you will know just how soft and comfortable it is. Otherwise, you might end up having a stiff blanket to snuggle on.
While a high thread count may matter in the softness of a snuggle blanket, it is not really the key aspect you would be looking for in a quality blanket. It is true, though, that soft blanket do have high thread count. But what really matters is that the sheets are made out of superior materials. Cotton, wool, and other fabric are being rolled into yearn before they are created into blankets. Basically, quality yarn is what you should look for to make sure that the blanket is supple.
Wool can also produce a soft blanket which is made from quality animal hair. One snuggle blanket that stands out is the Mohair blanket which uses the material of spun Angora goats hair. However, it should only be washed by dry cleaners and should never be washed by hand or washing machine.