sleeping in embryo position is an indication what they call in chinese medicine Yin deficient. If someone sleeps spread out like a star fish that is Yang in excess. If you get hot feet at night and a dry mouth that is another symptom of yin weakness. Also by sleeping that way you are keeping the muscles that suround the lower back stretched providing you with relief in the mornings. Stretch your glutes this will also help.

Nice work, good to see someone taking responsibility for their health.

Take care.

Cheers

Jedd.