The main ingredient is paper, shredded paper to be exact. You can use envelopes, junk mail, magazines, etc.
Each Eco-Friendly Dog Bed usually lasts a month unless you find a way to clean it easily.
Step 1: Things You Need
-Old pillowcase or some kind of fabric to enclose it
-Lots of paper (don't use unused paper, or it defeats the purpose of this Instructable)
-extra hands (optional)