So I picked up a set of each... the modal is soft, the but bamboo is f'ing great. It's cooler to sleep on, highly recommend as I get hot like a menopausal woman. That said, I have lots of modal grampa shirts and knew what I was getting into there... nice but kinda similar to the clothing material. I prefer the bamboo but have to say, you can't find bamboo over 300 thread count and I'm coming off of italian linens that were very heavy/nice so the bamboo feels a bit flimsy in comparison