N.J. Stat. § 26:10-9
No person shall, directly or indirectly, at wholesale or retail, or otherwise, sell, lease, offer to sell or lease, or consign in sale or lease, or have in possession with intent to sell or lease, or consign in sale or lease, any mattress that shall not have plainly and indelibly written or printed thereon, or upon a plain muslin or linen label securely sewed to the covering thereof, a statement in the English language containing the items required by R.S. 26:10-10 to R.S. 26:10-12. This label shall not be less than three by four and a half inches in size and shall be yellow in color if the label is for a mattress which was used in whole or in part or contains any material which was used prior to any sale, lease, or consignment.
N.J.S. § 26:10-9