Research help: blankets

Question for the knowledgeable: what shape, size and form would a medieval blanket (swe: filt) have? By blanket here I mean woolen, woven, used for keeping warm. What type of weave and what colours can be documented? Can any be?

I can my own self conclude without having to do much checking that thick woolen cloth was woven and used pretty much throughout - but was it used as blankets? How were the edges finished? Do we see any of the now standard fringes? Was it fulled? How heavily fulled?

I tried a couple of google searches but didn't find anything specific. I'm looking for references from pretty much any time frame.

ETA: Book references

A History of the County of Oxford XIV - Witney and its Townships p70-80~
Townley, Simon (editor), Boydell and Brewer, Woodbridge, 2004
- a comprehensive and detailed illustrated history of the Witney area in the Victoria County History series, contains chapters dealing specifically with the wool, cloth and blanket trade from its beginnings through to its decline and provides the context to this. Full references and footnotes are provided on each page to the numerous primary and secondary documentary sources that were used to research it.

Oxfordshire p164~
Steane, John, Pimlico, London, 1996
- a narrative history of the county of Oxfordshire, including a section on the Witney blanket industry.