The kids kept jumping on the bed. During a conversation with a friend, I heard myself say, "It's as if they are getting something from the jumping sensation." Holly proceeded to tell me that jumping helps her son (who has Aspergers Syndrome) organize his thoughts. That next day, Aldi had an excersise trampoline for sale and we went and got it.
The kids love it. Not only do they jump on it, they slide under it all at once and sit together on it.