5 hour flight tonight. 28 weeks. Advice?

Taylor
I'm going on a 5 hour flight tonight, I have a low risk pregnancy and my doctor didn't say anything when I mentioned my flight, but I've been googling and seeing some stuff about compression socks and getting up every hour, etc. it's an overnight flight so I was going to sleep but I guess that's not the best idea? Any advice would be much appreciated :)