As mentioned previously, dry clean only
does not always mean "dry clean". The label often times is referring to the inside material and is often misleading.
I am a certified upholstery and fabric cleaning technician (www.iicrc.org
) and have seen that many can easily be wet cleaned especially if a synthetic material. I use hot water extraction with professional quality products with good results and there are other options.
A simple burn test will help identify fabric type, inside zipper cut a small piece and burn looking to see if it beads up (synthetic) or turns to ash and crumbles (natural). If natural like cotton the cleaner may use an acidic ph cleaning solution and dry fast. (a few variables)
Also a few other things like material backing, fabric degredation and ink or markings on the cushion that could bleed through are of concern. A reputable carpet and upholstery cleaner could most likely clean the cushions.
Always ask the technician for certification which any reputable certified technician will proudly offer to verify.