I use a tape that both glows in the dark and is reflective. An example is in this link:

http://www.glowpaint.com.au/glow-reflective-tape.php

This is not the company that I bought from, as I cannot remember their name at the moment. But this does provide the best of both worlds.

I have never understood why items designed for emergency and/or survival uses are not made from glow in the dark plastic to begin with.