– Comfy oversized nightshirt crafted from soft stretch eco fabric that will have you lounging and sleeping cozily. – Flattering rounded neckline and hem with side slits. – Extended sleeves. – Tunic length: 31 inches. EcoCosy (R) fibres are made from certified sustainable wood pulp from sustainably-managed and renewable plantations. Its natural raw materials also means that these fibres are biodegradable.