I always sleep on my left side. How to protect my skin?

Question

I always sleep on my left side, and for 3 years I've been having a few stretch marks on my right inner thigh. Luckily no one can see them except my partner. Is there a fabric (like a knee supporter) that I can wear to support the skin of my inner right leg?

Answer 1

Not to be mean, but I don't think sleeping on your side can cause stretch marks. It might cause sleep lines that should disappear shortly after you awake.

Answer 2

Body pillow and silk sheets.