Check this out.
Amok - hammock innovations
Larger video here.
The Best Camping Accessory You Could Ever Hope For | REALfarmacy.com | Healthy News and Information
PS: I have no affiliation with the above product. I posted it because I thought that the use of an inflated pad as a rigid support and the cross-axis sleeping position was interesting. It may give ideas to DIY folks to improvise their own designs.