My sleep cycle was all jacked up for the first week once I was back at home. I had a prolonged stay at the hospital due to some complications so the continual wake-up calls every 2-3 hours for 6 days wrecked me. For the first few days at home I would wake up at 2 a.m. and then just be up from then on.
I didn't do anything special to get back on track. Just took my body some time to get back to normal, but it did after a few days. It can be frustrating but it'll get better!