Ikea is working to get this cleaned up..here is an email from yesterday:

Thank you for coming in this morning and speaking with me concerning our mattresses. Our home delivery provider is responsible for the removal of that product and they are currently underway setting up a removal of the exterior (and interior) mess. We are sorry that this was an issue, but we thank you for bringing it to our attention. Please if you have any other questions do not hesitate to give me a call or shoot me an email.