Selecting the right lining for draperies involves considering a variety of factors, such as the level of light filtration, insulation, and privacy you desire.

Here are some general tips to help you select the appropriate lining for your draperies:

Consider the amount of natural light that enters the room. If you want to block out light completely, choose a blackout lining. If you want some natural light to filter through, but still want privacy, choose a light filtering or sheer lining.

Think about the climate in your area. If you live in a colder climate, you may want to consider an insulated lining to help keep your home warm during the winter. Alternatively, if you live in a hot climate, a lining that blocks out sunlight can help keep your home cool. 

Consider the color and pattern of your drapery fabric. If you choose a sheer or light filtering lining, the color and pattern of the fabric will be more visible. If you choose a blackout lining, the color and pattern of the fabric will be less visible.

Think about the level of privacy you want. A blackout lining will provide the most privacy, while a sheer or light filtering lining will allow more visibility into your home.

Consider the style of your room. If you have a traditional or formal decor style, you may want to choose a lined drapery with a more substantial weight and drape. If you have a more casual or contemporary style, a sheer or unlined drapery may be more appropriate.

Overall, selecting the right lining for draperies depends on your personal preferences and needs. It’s important to consider factors such as light filtration, insulation, privacy, and décor style when making your decision.