Find an Amazon hammock that fits your ... get a load of this swinging tent they can share with a friend or two. Kids can enjoy it as a nesting pod or open it up as a swing seat.
My back isn't "built different," it's built all wonky. The Warbonnet Ridgerunner and I have that in common. Hence, why I'm a hammock guy: It took time to learn how to achieve the perfect hang, but ...