Boucle can be made out of a lot of different things, but I would say if you're not used to working with it try something acrylic, like Bernat soft boucle yarn. As an acrylic, it can be machine washed and is very durable.
cold sweat - the physical condition of concurrent perspiration and chill; associated with fear. fear, fearfulness, fright - an emotion experienced in anticipation of some specific pain or danger (usually accompanied by a desire to flee or fight)
Sweating during a cold - 61 years has the half body sweating, the left side, cold sweat, often duringthe night but sometimes during the day. After sweating feels sluggish, What is? Harlequin syndrome. Changes in a person's normal pattern of sweating can have many causes: medications, & hormonal imbalance, etc., which are easily treatable.