Hi I think goose down is quite a luxury, light as a feather so to speak but you can get allergies if they do not suit you. They will be warm and you could get a low tog 2 and say an 8 tog which will clip and un clip to match the seasons. Make sure the pillow has a really high quality fabric around it so that the feathers do not start to poke out. I found a lot on this site https://www.raymattextiles.co.uk/