Bevel the selected Polygons (Bevel Options: Bevel Type=Local Normal; Height=-0.2; Outline Amount=-0.1). Hit Apply and then set Height to 0.3 and Outline Amount and -0.1. Hit OK to bevel the polygons with the last settings.
Select all the Polygons that form the top part of the pillow. Bevel with the following options Bevel Type=Local Normal; Height=-0.15; Outline Amount=-0.05. Hit Apply. Bevel again: Bevel Type=Local Normal; Height=0.3; Outline Amount=-0.05. Hit OK.
Switch to Edge Geometry Mode and select the 4 edges in the corner. Hit Loop and chamfer with Chamfer Amount=0.3.
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