This is the sound of hand-combing the washed fleece of the Rough Fell sheep, which is grown in Cumbria, in the UK.
The Rough Fell fleece is strong and characterful and once fetched a very high price for the stuffing of Italian mattresses because of its bounce and strength.
The wool grown in Estonia which is used in Mooste is also good for stuffing mattresses and wool-filled mattresses, pillows and duvets are important outputs for Villakoda, in Mooste.
This recording of Rough Fell fibres was created by attaching contact microphones to wooden wool-combs. You can clearly hear the scratchy qualities of the fibres themselves, as they are combed.