Girdles Rubber Sleeping With A Waist Cincher....?

Sleeping with a waist cincher....? - girdles rubber

I had my second child 7 months ago, and I practiced like crazy (squats, weight, etc.) and the food as very healthy.

Everything seems good except for my belly, it looks like a stain (a friend told me to sleep with a cincher belt or a rubber band, I've tried one night and was obviously very uncomfortable.

Have you ever tried this before ...? It really works?

Thank you! :)