Internal engineering test · Method: Internal protocol

Full-Width Topper Fold & Recovery Test

Scheduled — no results yetCS-TST-004

Product revision: CS-MATTRESS-2026-08-A

Internal engineering test — not an EN, ASTM, CPSC or medical certification.

What are we testing?

Can the structural full-width topper form and retain a fold in a way that behaves like loose bedding?

Why this test matters

A topper's real-world behaviour under folding is a measurable question — not something to assume from its name or material.
The comparison point is loose bedding, which can fold and stay folded.

Method basis

Co-sleeping.com internal protocol. We publish measured behaviour (retained overlap, recovery time) rather than an invented “infant-safe” certificate.

Planned procedure (draft protocol)

1Full fold: fold the topper back on itself as far as the construction permits, hold 30 s, release without assisting recovery.
2Record retained overlap at 1 s, 10 s and 60 s, and final condition after 5 min.
3Corner fold: repeat with a diagonal corner fold.
4Loaded fold: apply a predetermined distributed load to the folded area for 60 s, remove, record recovery at the same intervals.
5Durability: repeat the fold cycle 100 times, then rerun the first scenario and compare.

What will be recorded

Maximum fold height and overlap
Retained overlap after 1 / 10 / 60 s
Time to full visual recovery, if achieved
Permanent deformation after 5 min
Cover/seam condition

Result

Scheduled

This test has not been run yet under the current documentation protocol. No result is published until a dated, signed internal test record exists for the stated product revision.