If you're serious about it, get a tenor practice pad and music to practice. Bill Bachman's "Quad Logic" book at the accompanying "Reefed Beats" DVD are great resources. Pillows don't simulate the surface of a drum well enough. If you want to be good on the drums, you'll need to practice on something that feels like the drums so you'll be able to transfer what you've worked on.
If you don't have the dough to spend on a tenor pad (they
are fairly expensive), here's one way to rig up a cheap alternative: Draw an accurately-sized tenor layout on a piece of plywood. Put
latex surgical tubing or
IP practice tips on the beads of a pair of sticks. Voilá! You've got a practice pad, but with the rubber on the sticks instead of the pad.
In the meantime, don't let the lack of a tenor pad keep you from practicing. If you practice on a single pad or drum, the technique you're learning and reinforcing applies to tenors, too.