I would recommend washing as one would a pillow. would put it inside a pillow case and toss it into the machine on a gentle cycle. When the cycle is over, check how wet it is still. If still very full of water, set it on a spin cycle.

Toss into the dryer on a low setting or just an air setting. Sometimes a pair of cloth gym shoes or a few tennis balls help keep it fluffy.

Some stuffings ball up upon washing and once the item is dried in dryer, it has a lumpy appearance. I don't know what kind of stuffing does this, just thought I'd let you know of the risk. All i can say is that stuffing is something different than pillow stuffings, which if not down/feathers, wash & dry like new

I would just take some laundry detergent and a wash cloth and hand wash it.

I would use steam if the fabric is colorfast. -Grainlady

Thanks for the suggestions. I have done some research & I think I have a Hugg-a-planet. The current ones seem to be washable, although I don't know that my 20+ year old is. One review on Amazon said the ball washed well, and another said it didn't.

Oh yes, definitely a hugg-a-planet. My son had one . I'd definitely try washing it, but I'm not sure about using the dryer.

I washed the ball on delicate cycle and then put it in the dryer that was warm from a previous load. I set the dryer on no heat for a few minutes and then laid the ball on a drying rack. It came out pretty well. Thanks for your help.