The Dually is so simple to use it barely even needs instructions... 

SET UP

1. Use the handles to position mattress.
2. Unclip two black clips holding the Dually together in stow mode.
3. Voila! Let the mattress unfold. 
4. Sweet dreams & even sweeter adventures. 

Cleaning: Remove fabric cover to machine wash.  Follow instructions on care label.

Storage: Store in a cool and dry location.