Sealable and stackable packages for bedding products

A method of hermetically sealing bedding within a stackable package comprising:

• providing a flexible outer container having an upper end and a lower end, a bottom panel extending along the lower end of said flexible container and side panels extending upwardly from said bottom panel toward the upper end of said flexible container for defining an opening at said upper end of said flexible outer container;
• disposing a box-shaped insert inside said flexible outer container for reinforcing said bottom and side panels of said flexible outer container, said box-shaped insert having an opening at an upper end thereof that is in alignment with said opening at said upper end of said flexible outer container;
• providing bedding having a first size;
• compressing said bedding into a second size that is smaller than said first size;
• disposing said compressed bedding inside said box-shaped insert, wherein said box-shape insert maintains said compressed bedding at said smaller second size;
• joining upper ends of said side panels of said flexible outer container for hermetically sealing said compressed bedding inside said package.