Ajungilak (now Mammut) air pillow is worth considering. Lovely soft fluffiness, fairly light - it is an inflatable but I find that useful because you can adjust the extent of inflation.

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deflated size 35 x 35cm
are shaped so they fit right up to the sleepers neck and are high enough and non-wobbly even for broad-shouldered side-sleeppers. Both come in the same super tricot fabric used in the SComfort Mat

Specifications: 40 * 30 CM, thickness between 2-10CM can be adjusted freely.

Weight: 221g

Products: polyester fabrics coated PVC grid cloth

Colour: spot is orange, red, blue, GuoLu

Inside buy: high resilient broken sponge

Gas mouth: plastic

Workers arts: pull column, around the middle

Package: vacuum roll into installed with color bag

Method of use: removed from packing products, open mouth, automatic filling gas, can according to own comfort, instant tight gas mouth, such as automatic filling still think enough thick, usable mouth blowing adjustment.