Weight loss and better sleep

This is so odd but maybe someone else has experienced it. I'm 32 weeks, I've lost some weight, roughly 3 lbs this week and prior to that I was packing on the pounds at at least one gained every week. I'm also sleeping great, through the night which I haven't done since I was about 3 months along. I have a doctors appointment Monday but I thought I'd see if anyone else felt the same. It's just really strange to feel better in the third trimester, isn't it?