Pregnancy pillow

Adrienne • Wife of a king 💏 3/25/17... Mommy of 2 princes 👲🏾2/10/04 👦🏽 8/2/14... and 1 princess 👶🏼 due 9/6/18

What is the best pregnancy pillow style and brand? I’m thinking the U shaped ones would be most comfortable but I keep getting mixed reviews for the brands. Any input is appreciated.