system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do mattresses always have a weird stiching pattern on them?
gpt
The practical reason is that it keeps the stuffing more evenly distributed around the mattress after several hundreds of nights. This is similar to the box patterns that are usually sewn into comforters.

The less practical reason is that it's visually appealing for the showroom floor. This is similar to putting pretty patterns on the inside of shoes.