Weighted Clothing

I am looking to add weighted clothing and accessories to my store, and am doing some research. First off, for those of you who have children that need/use this type of clothing whether it be a vest or blanket:

• What is the approximate weight?
• Do you wish it was more or less heavy than it is?
• How washable is it?
• How washable does it need to be?
• How large is it? (full body, chest, legs, etc)

Any guidance in this respect would be good, I have several ideas, but the like most things in my store, the ideal is to be a less expensive alternative to what the big catalogs sell, so I need your thoughts. Comment below.