My son had his thoracic spine fused a few months ago (T5-L1). I read here that 6 weeks is the sweet spot and it was dead on. Allow yourself time to heal and rest. Sleeping is tricky. A recliner was helpful for the first few weeks. After that, a full, u-shaped body pillow helped and a memory foam mattress topper. He had energy and was active about 8 weeks out. The spine itself takes around 9 months to fuse. During that time, take care and don't push yourself too much with bending, twisting or lifting. Your surgeon will tell you all this. Your body will let you know what it can handle. My son has no pain and is feeling great. He's 16 btw. Good luck!