Do these curtains block out light?

No. They are light filtering, so they soften daylight and add daytime privacy but do not darken a room. For a bedroom that needs full darkness, pair them with a blackout liner or choose a blackout panel.

Can I machine wash them?

The linen-look fabric is not machine washable. Spot clean or dry clean, and steam out packing creases rather than tumble drying.

What rod do the grommets fit?

The silver grommets take a standard rod, typically up to about 1.5 inches in diameter. Measure your rod before ordering, and match the matte silver finish to your hardware.

How many panels do I need for my window?

Each pack has two 54-inch-wide panels. For a gathered look, allow roughly one and a half to two times your window width in total fabric, so one pack suits a window up to about 54 to 70 inches wide.

Are 84-inch and 108-inch lengths both available?

Yes, the Loha comes in 84-inch and 108-inch lengths. The longer option suits tall windows, two-story rooms and sliding doors.

Will they help with heating and cooling?

Only slightly. The listing mentions thermal insulation, but light-filtering linen-look fabric is not a true thermal barrier. Expect a small buffer, not energy savings.