Moisture and sensations associated with dampness on the skin and in clothing are fundamental to discomfort. A series of subjective trials on dampness perception and tests with a special humidity sensor and a static thermal resistance test device have been made in order to determine the role of superabsorbent fibres in parallel nonwoven interlinings from the point of view of their comfort properties. Five subjects evaluated six parallel nonwoven samples containing polyester polyester/co-polyester and super-absorbent fibres at different ratios and different excess moisture values. The tests showed that dampness of perception and fibre hygroscopicity were interrelated. The positive role of hygroscopic fibres in preservation of thermo-insulating properties as well as 'dry-hand' at high water content was confirmed.