I have made and sent quilts to a few soldiers in Afghanistan and they were happily received. However, I did not know the receipients personally. I used cotton for the tops and fleece for the backs. I didn't use a 3rd layer in the middle. In cot size, these are pretty lightweight and warm. Just a thought for consideration.
I think if someone is on the move a lot the less they have to keep track of the better.
Many hugs and thanks to you and your family for all you have and are giving for us and your country.