The arolla pine topper provides optimal warmth and improves sleeping hygiene. It guarantees a soft lying surface without reducing the supporting effect of the mattress, and thus offers ideal sleeping comfort. This topper can absorb humidity up to 30 % of its own weight. To maintain a dry climate in bed, we recommend regular airing. Arolla pine flakes smell pleasant and help to relax more quickly. The outer fabric is 100 % natural percale cotton, filled with arolla pine flakes (ca. 140 g/m²) and new wool (700 g/m²). Not washable.