Get this one from Amazon by Hiker Hunger:
https://smile.amazon.com/gp/product/B01M1F1IZU/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
It's 11 feet long, ultra wide, and importantly comes with straps to get you hanging right away. It's big enough for my 60 pound 7 year old daughter to nap with me. She has her own hammock for overnights, though.
I also have and recommend Dutchware stuff, which isn't much more expensive, but personally I find the hiker hunger to be more comfortable than the 1.6 hexon from dutch.