Side sleeping backpack LBrFe4Qsn,

Polyester
Helps with Side-Sleeping – This backpack provides comfortable back support to help you sleep on your side so that the tongue, soft palate, and loose throat tissues will not fall backwards, blocking the respiratory tract. It can help alleviate snoring that is solely caused by throat issues. You can develop a side-sleeping habit with a Two-Month backpack training program.
Big Enough to Ensure Side-Sleeping – This backpack is big enough to keep you off your back at night. If the back supporter is small or flat, you will end up sleeping on your back with it pressing on your spine, which is not just painful but dangerous. Please adjust the air capacity of the airbag from half-full to full to find the suitable sleep position.