About 9 oz (255 g). Enough to feel settled, light enough to forget about.

It dims the room rather than blacking it out completely. It is designed for calm first. If you need total darkness, pair it with blackout curtains.

Yes. With no strap, you can drape it across your eyes on your back, or tuck one end under your pillow to keep it in place on your side.

Most people use it to fall asleep. It may slip off once you are out, and that is fine.

Yes. Put it in a sealed bag in the freezer for a cooling effect. Do not microwave it.

We ship within the United States, free on orders over $50. If the mask is not for you, return it within 30 nights.