FADOTY 100% Blackout Curtains for Bedroom 118" x 57" Portable Blackout Shades No Drill Travel Blackout Blinds Sunblock Window Cover Black Out Curtains for Nursery Dorm Room Windows: Panels: Amazon.com.au
Blackout (fabric) - Wikipedia
SCHOTTIS Block-out pleated blind, dark grey, 100x190 cm - IKEA