I found a deal on Amazon for a cervical pillow; it's on sale for $13.99 (usually $27.99). If you decide to grab this deal now, you'll score 50% in savings.
Note that this deal is for the blue pillow; there are two other colors available, but they cost more.
Prime members will get fast and free shipping along with these other Amazon Prime benefits. Here's how to sign up if you're not a member yet.