I would love this... I am mainly nocturnal anyway and I would get to live twice as long!
Themisfitjoe
you extend your life significantly by migrating to one of the polar circles and being exposed to sunlight for days/months at a time
bryan.derksen
If you're wanting to remain a tree deliberately I'm sure it would be possible to rig up suitably sun-like artificial lighting to do it for as long as desired.