I grew up with “featherbeds”, made by my grandmother & loved them. We have this down mattress topper from Parachute on top of our Tempur-Pedic mattress: https://www.parachutehome.com/products/feather-bed-with-down-top?opt-size=king. We love it! My husband always comments how comfy our bed is, especially after we travel. 😊 They also carry down alternatives.