Thermal Comfort of Bedsheets Under Real Conditions of Use

Thermal comfort properties of various fabrics in dry state were systematically studied by many authors, but papers on thermal comfort properties under real conditions of use are sporadic in the professional literature. In this paper, thermal conductivity, thermal resistance, water vapor permeability, and thermal absorbtivity in dry and wet state of commercial cotton, cotton/PU, and cotton/PES bedsheets are presented. The samples were wetted by means of the so-called sweating impulse. It was found that the warmer (dryer) contact feeling and highest thermal insulation in wet state exhibited knitted cotton bedsheets containg some percentage of PU or PES, and also 100% cotton woven fabrics with hairy surface.