The smell, how long will it last?

When does the smell go away? Opened the packaging up and was hit by a wave of industrial foam smells. We let it sit overnight with the ceiling fan on. Next day whole room reeked. Took it out side where it spent the whole day in the sun. Brought it back inside and then still had to sleep on the sofa bed. Took three days before we used it. A week later and we lay down and still get a puff of foam stench. What is this stuff and will it give me an incurable lung condition? We almost tied it to the roof of the truck and took it for a drive just to air it out...

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