There is no easy answer to this question because it depends on a number of factors, including the type of blinds and curtains, the climate, and the size and layout of the room. Generally speaking, blinds are not as warm as curtains because they do not provide as much insulation. However, there are some insulated blinds on the market that can be just as warm as curtains.

There is no definitive answer to this question as it depends on a number of factors, such as the type of blinds and curtains, the material they are made from, and the climate in which they are used. In general though, blinds are likely to be slightly warmer than curtains as they provide more insulation.