How to wash a sheepskin rug
You will need
Shampoo and hair conditioner
An outdoor area
A garden chair or other sturdy support
A very hot, dry day.
Put your sheepskin in the bath, skin-side down. Turn the taps on. I usually have the water hand-warm; as long as you don't over-agitate the rug you're unlikely to turn it into felt. Let the water get a few inches deep, enough to cover the fleece and let it drift about. The rug will probably float slightly.
Squirt a bit of shampoo over the rug and rub it gently in with long sweeps of your hand. You don't need to work up a mass of bubbles, and you don't want to felt your rug, you just want to get the detergent in to do its work. Don't be alarmed if your sheepskin looks darker than usual, this is normal when it's wet. My nice cream one always goes a manky yellow colour.
Repeat the shampooing and rinsing if your rug is especially grubby.
Gently rub conditioner into the fleece.
Now pop the plug back in the tub and turn the taps on. Again, get the water a couple of inches deep and rinse off the conditioner.