Another odd idea.
… According to Topeak, the Bikamper ‘is a personal shelter that utilizes a 26″ mountain or 700c road front wheel in place of tent poles.’ The tent and the fly fold down into tiny 10.2″ x 5.5″ pack, weighing in at 3.59 lbs. …
Uncooped – campergirl – The Bikamper: A good idea?
besthike.com 
Something like the MSR Hubba seems a better option.
Hmmm… My North Face Lunar Light is lighter (3.3 lbs?) and sleeps 1.5 people (or 2 small people, like me and Sandy).