Thanks, Calla lily. Interesting idea to use rice or beans. It seems like beans could make a clicking sound when they move, but rice would be quiet. Sand would be excellent...there must be some type of craft sand that would be clean.
For me, having a weighted blanket just across my lower legs and feet would be great. It's a calming feeling, plus my legs and feet usually ache for whatever reason, and the weight feels soothing.