Block out Curtains, also known as Blackout Curtains, will keep your room warm during the winter months and cool during summer. That can help you save on your energy bills! They will also keep out unwanted sun rays, preventing them from fading your carpets and soft furnishings and creating fabric breakdown. Possibly best of all, Block out Curtains will keep the light out on bright mornings. That makes them a great option for lazy Sunday mornings, children’s rooms, and for shift workers trying to get a good night of sleep in the bright light of day.