Are wrap-style pillows like the Trtl actually better than U-shaped memory foam?

It depends on your sleep posture. Across reviewers, wrap/scarf-style pillows like the Trtl get the strongest praise for stopping the dreaded head-bob and supporting short necks, while U-shaped memory foam designs (Cabeau, BCOZZY, napfun) score better with travelers who want adjustability, chin support, or the option to lean against a window. Side and back sleepers tend to prefer the U-shape; people who fall forward in their sleep tend to prefer the wrap.