Sonno is a down pillow from Mille Notti. The white pillow is filled with 60% down and 40% feathers. The fabric of the pillow is a down-proof cotton cambric that is sewn with piping. The down pillow has a load-bearing capacity of 8+. The pillow comes packed in a fabric bag and is available in different sizes and heights.

The down pillow is recommended by the Swedish Asthma and Allergy Association. It is also certified by IDFL, which guarantees that the down has not been picked from live birds and that there has been no force-feeding in the breeding of the birds. It has also been certified according to Öko-Tex Standard 100, which guarantees that the bottom sheet is free from harmful substances and is safe to use by both children and adults.