The Real Fix: A Pillow With a Hole
A donut shaped travel pillow, the kind with a hole cut in the middle, is the single best option for a new cartilage piercing. Your ear sits in the hole with zero surface contact instead of getting pressed into a flat pillow all night. No pressure means less irritation and less chance of a bump forming from repeated contact.
You don't need anything fancy. A basic travel neck pillow with a center cutout works, and there are inexpensive piercing specific versions made for exactly this.
If You're Not Buying a Pillow
Switch to a silk or satin pillowcase. If you do roll onto your ear, the smoother surface lets jewelry slide instead of snagging and twisting, which is what actually causes most of the pain and irritation people blame on "bad sleep." Regular cotton grips and catches far more than silk does.
Whatever pillowcase you use, change it every two to three days. It collects oil, product, and bacteria fast, and all of that sits right against a healing piercing.
Simplest Option: Sleep on the Other Side
If you'd rather not buy anything, just favor your unpierced side or sleep on your back for the first several weeks. It's free, and it works, the only downside is it takes a little getting used to if you're a committed side sleeper.
What to Avoid
Skip memory foam that hugs tightly around your whole ear unless it's specifically designed with a cutout. It feels supportive, but it can press evenly all night in a way that's actually worse than a flat pillow. And try to avoid sleeping on your stomach with a fresh cartilage piercing altogether, there's no good position that keeps pressure off.