France Bed Snow Pillow Mini Pillow Cushion Side Sleeping Prone

This is the Snowless Pillow Mini from France Bed.
I tried it once with a towel on it, but I'm selling it because I switched to a different one.
This is a home-stored item. There are no pets or smokers in the household, and I don't see any noticeable stains or sagging.

Product Description
This pillow cushion can be used on your bed or in the living room, creating a relaxing space anywhere.
Its unique shape is designed to reduce strain on your neck, shoulders, and arms when sleeping on your side.
It also supports a prone position and can be folded for use as a floor cushion.

It features a soft memory foam head cushion that conforms to your head, also designed to reduce strain on your neck.
The arm cushions can be attached to either the left or right side.

This series was developed with side sleeping, known as a countermeasure for snoring, in mind. This product is presented as a series of pillows specifically for side sleeping, based on ergonomic research from the Faculty of Engineering at Swinburne University of Technology in Australia.
Product Information
? Product Name: Snowless Pillow Mini [francebed]
? Size: Width 420 x Depth 750 x Height 270mm
? Reference Price: ￥16,280 (tax included) [francebed]
? Uses: Can be used for side sleeping, support when lying prone, leaning on, and as a floor cushion.
? Features: Memory foam head cushion, arm cushions attachable to either side.