Peaceable Projects Inc. is a U.S.-based non-profit group that brings the vast resources of the wide world together with the ongoing needs of the people who live, work, and travel on the Camino de Santiago pilgrim trail network in Spain.
it must be 'Villamayor de Monjardin' - between Estella and Los Arcos - a nice (but basic) albergue on the top of a hill.
Last may, a young Spanish, David, was hospitalero - very helpful and regarding.
You don't say which of the albergues you found the chinches in - was it the one by the bar, run by the Dutch protestants, or the one on the right as you enter the village ? The Dutch have special mattress covers that are meant to prevent bedbugs.
By the way- thanks so much for your advice on how to flush them out - we used it all the time and it works !