What is the softest yarn?
Cashmere: The softest and fluffiest yarn of them all, but is also rather expensive and not that strong.
How do you make yarn less fluffy?
Usually, hand washing in a gentle detergent, and drying the piece with the air-dry setting of your dryer for around 10 or 15 minutes will work. You might want to put the project in a zip-top pillowcase while it’s in the dryer to contain the shed fibers.