How long following reduction surgery should I sleep on my back if side/stomach positions do not cause me discomfort?

Sleep positions are best described by your operating surgeon and is dictated by how you're progressing during your recovery. There's no concrete answer as to when you could start to sleep in different positions that would place pressure on your operative sites. Follow your surgeon's recommendations.

I allow patients to sleep in any position that they feel comfortable.  This is usually determined by the patient and how they are feeling post-op. Initially they prefer lying on their backs or sides.

No physical activity for three weeks.At 3 weeks, you can walk on a treadmill or ride a stationary bike.At two months, you can resume all physical activity with a sports bra.No lying on your side for two months.For more information on post-op care, please read my book, "Cosmetic Breast Surgery - a complete guide from A to double D".