Congratulations on the delivery of your new BioPosture made-on-order mattress! The first step is to bring the compressed mattress into the destination room. You will find it easier to carry out of the box, in the plastic wrap.
Place the wrapped mattress on the bed, and "carefully" remove the plastic wrap. You will need a scissor to cut the plastic where it is heat sealed. Once punctured, you can usually rip the plastic off. Be careful not to accidentally damage the mattress fabric cover ("ticking").
As you remove the plastic wrap, the mattress will unroll and begin to recover to it's full height. Depending on temperature, this may take up to 30 minutes.
Remove the remaining plastic wrap and allow mattress to recover and adjust to room temperature. In cold winter months, your new mattress may need one full day to acclimate fully to room temperature.
Your mattress will feel soft until it fully recovers. That could take up to 24 hours. Then dress your new bed and enjoy "sleeping in natural balance".