The person who makes it has no need for it. The person who buys it never uses it. The person who uses it never knows they're using it. What is it?

I'm a fantastic form of insulation, so long as your lungs don't digest my gestation. I was once in cigarette filters, which truly hits that coffin nail on the head; hell, we used to make blankets to sleep out of this.

I’m a tiny shiny cup For royal juice or dragons sup. I’m not a mug, I’m not a bucket, Kings say cheers each time they tuck it.

I house the past for all to see, In halls of quiet history. From ancient times to modern view, I keep the past preserved for you.

I have no feet yet guide every traveler across land and sea. I never speak but always point when north is the secret I keep. In hands on maps or locked inside a sailor s careful kit I help the lost find their way through fog storm and forest alike. Though I do not choose the path I make sure you know which way to go. What am I?