It is comfortable and well made
It was suggested that sleeping in a negative magnetic field would be helpful to the shoulder pain I was experiencing. Instead I tried months of physical therapy with minimal improvement. Finally I decided to try this. While also being more mindful of my nutrition and hydration, adding this in was the final key. My pain improved immediately and within a few days of use I no longer had that nagging shoulder pain. It is comfortable and well made. I am happy with the effects, cost, and craftsmanship of this product. I did find it difficult to ask the buyer questions prior to buying ie: not returning email questions.  I am concerned if I have any trouble what the customer service will be like...but so far I love it!
Rating: 5 stars