During the day yes — they blur the outside view while letting light in; at night, with indoor lights on, silhouettes become visible, so layer them or choose a privacy sheer for after-dark privacy.

Yes — once interior lights are on the lit room becomes the bright side and people outside can see movement; add a blackout layer on a double rod, or pick our Privacy Sheer, to stop this.

Only slightly — sheers diffuse light and cut glare but don’t block solar heat; for real heat control layer them with thermal or blackout curtains.

Only lightly — pure sheers reduce some glare and UV but won’t fully block it; for strong west-facing sun choose a denser light-filtering sheer or add a lining to protect floors and furniture.

Sheer fabrics let in the most light with the least privacy, while light-filtering fabrics (including semi sheer linen) use a denser weave for softer, diffused light, more daytime privacy and better glare and UV control.

For a full, gathered look measure 2 to 2.5 times your window or track width; less than that and lightweight sheers can look thin and flat.

Yes — machine wash cold on a gentle cycle and hang to air dry; skip high heat to avoid shrinkage, and rehang slightly damp so they fall smooth.

Yes, and it is the most popular setup: hang sheers on the inner track for daytime light and blackout drapes on the outer track for nighttime privacy and sleep.