Avoid sleeping directly on your new piercing. The pressure can not only change the angle of your piercing, but it can cause it to swell.
Simply so, when can you sleep on cartilage piercing?
According to Healthline, “cartilage piercings typically take anywhere from 4 to 12 months to heal completely.” Even if your piercing looks like it has healed, it is important that you wait until you‘re sure it’s fully healed before you even think about changing it.
Keeping this in consideration, can a piercing close in a day?
“By healed, we mean that the channel of the piercing (what piercers call the fistula) is intact and no longer in the healing process. … For instance: If your piercing is less than a year old, it can close in a few days, and if your piercing is several years old, it can take several weeks.