best way to clean couch pillows?

i have decorative couch pillows i roll pillow and a cotton/yarn pillow and a silk one. how do i clean and disenfect them. and how do i get satins out of my light brown polyester couch?

Steam clean them
Modern Pillows,Silk Decorative Bed Pillows,Embroidery Designers Cushions Covers – Spacify.

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