Do you mind sharing the details of the actual suspension that caused this numbness? Disorientation is not surprising, seeing as one of suspensions intents can be to lend that off-balance sensation. There are plenty of variables that can mitigate or add to that sensation, including attachment points, amount of sway, blindfolds, etc.

In terms of the numbness issue, additional surface area will help mitigate any immediate nerve pressure. Rather than abandon this from ennui, I'd suggest trying a variety of ties and media. At very least, you can use this frame for a sling.

--SJ