Do you think that curtains were invented, not to prevent people outside looking in, but so you do not have to stare into the black abyss at night from inside?

Gee, I just figured they were there to keep the cold out.

I agree ^^^, to keep out the cold (or heat)

No

If its darker outside, you see a reflection of the lighted room. What I do like, though, are dark mirrors that have weird images when the room is dark.

If you feel a little drawn, pull yourself together!

To keep people from seeing in and to keep the cold out. That’s why I use them anyway. Oh, and also to keep the glare from the sun from hitting the TV, but I guess we didn’t have TV when curtains were invented.

Curtains to keep the cold out is like using a zip-lock bag as a condom.

@johnpowell Better than nothing. Heavy curtains drawn closed do help.

When I lived with my parents and they kept the house too hot on a winters’ night, I’d open the windows wide and just pull a windowshade down. It kept the room decently cool and airy but not cold.