Continental Duck Down ( four height and various softness)
Rosewood Luxury Goose Down Pillow (Four height and various Softenss to select)
HIlton 50% Duck down ( medium firm )
King size pillow is the most common size found in 5 stars hotel. also, this size is the most comfortable, it allows air to flow around in the down pillow. Because Rosewood is using high quality goose down and makes its the most luxurious down pillow in its class.