This means that the majority of the firmness will come from the air chamber with a small soft layer of fiberfill on the top, not the air chamber and additional layers like other models. There is a section of fiberfill filling on the zip-off top of the mattress and nowhere else.

This is most likely because there is no foam inside the mattress. However, a specialist online told me that the C2 model will be one of the firmer mattresses they offer.

Firmness LevelĮach person’s unique Sleep Number number will dictate how firm the mattress is. Note: Looking for a mattress with stronger support and durability? Check out our Best Mattresses That Won’t Sag. Hover over the icons to learn more about these different topics, or scroll down for a more detailed analysis on each one. Our team of Certified Sleep Science Coaches personally test each mattress in categories such as materials, comfort, cooling, and support. Overall, the C2 model is made up of a soft zip-off top layer that has soft fiberfill sewn into the mattress top and then the adjustable air chamber(s) below.

While the top of the mattress has the ability to be zipped on/off, it is not recommended that people remove or wash any part of their mattress. I’ve gotten several different answers when I asked what the filling it seems to be some sort of fiberfill material. The C2 model does not have any foam layers inside the mattress but it does have a soft filling sewn into the top of the mattress. The hoses to pump air into the chamber are 4ft in length. Sleep Number calls this “DualAir™ adjustability” and it allows people to adjust firmness and support on each side of the bed to their Sleep Number setting. Inside the mattress, people will find one or two air chambers, depending on the size of their mattress. The C2 mattress is 8 inches thick (2 inches thinner than the C4 mattress)Īnd made with Rayon/polypropelene fabric blend.

Queen bed frame c2 sleep number