I use a weighted blanket (have lupus and other autoimmune issues). The one I have is 12 lb, from Amazon. It was a great price and at the time I found a coupon as well.

https://www.amazon.com/gp/product/B083QDJJGY/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

It helps me and my arm and leg pain quite a bit at night. I got the twin size, so I only use it on my side of the bed (share a king size bed with husband). My dog also loves it, she loves to burrow down under and sleep.