A quilt or usually flat cloth bag with a filling (traditionally down) and usually an additional washable cover, used instead of blankets; often called a comforter or quilt, especially in US English.
A tarp, a heavy, waterproof sheet of material, often cloth, used as a cover or blanket.
A hat made of, or covered with, painted or tarred cloth, worn by sailors and others.
To cover with a tarpaulin.