Flexible floor mat incorporating LED lighting

A method of forming an up-lighting floor mat from multiple mat portions comprising:

• trimming at least one mat portion of the multiple mat portions to form at least one elongate cutting and to form floor matting that defines an upwardly-facing surface of the up-lighting floor mat and an opposed downwardly-facing surface of the up-lighting floor mat when the up-lighting floor mat is supported atop an upwardly-facing support surface, and that defines a first elongate slot through the floor matting to receive a first elongate up-lighting assembly to emit light up from the first elongate slot, wherein the at least one mat portion comprises a first flexible material that enables the up-lighting floor mat to be rolled up for transport or storage;
• bonding at least one upwardly-extending portion of a first U-channel of elongate shape and upwardly-opening cross-section that defines an elongate edge of the first elongate up-lighting assembly to at least one edge of the floor matting that defines the first elongate slot, wherein the first U-channel of the first elongate up-lighting assembly comprises a second flexible material that cooperates with the first flexible material of the floor matting to enable the up-lighting floor mat to be rolled up;
• bonding a surface of the elongate cutting to an upwardly facing surface defined by and within the first U-channel, wherein the elongate cutting has a wedge-shaped cross-section;
• and
• bonding a mounting surface of a first flexible LED strip to another surface of the elongate cutting to orient the first flexible LED strip within the first U-channel of the first elongate up-lighting assembly to cause LEDs of the first flexible LED strip to emit light primarily in a first direction that is angled away from vertical, wherein the first flexible LED strip is sufficiently flexible as to not impede the rolling up of the up-lighting floor mat.