I think so other people can get to sleep without the blinking lights from outside the plane annoying them. But there may be other reasons.
Bamboo shades arent a really good source of privacy at night as they tend to have a see through pattern that you cannot completely close . For more privacy at night I would suggest going with a different type of shade .
Night Shades was created on 2011-08-29.
At night. They fly around not too close to the ground but not too high. They catch mosquitos and other insects by flying at them and catching them in their mouths.
www.motorizedsolutions.com is a good source for remote control and motorized window shades.
Windows shades such as the Woven Bamboo Blinds Woven Wood Shades allow you to adjust the level of light that come through the shades, whereas curtains can only open and close.
12 shades of the night
Those are shades, not curtains.
Angel Flying Too Close to the Ground was created in 1981-01.
heavenly shades of night are falling by the Platters
Yes, lilies typically close at night.
Yes, there are many small aircraft, both civilian and military without night flying equipment.
where the image's shades fall close together across the image