If you’re a bookworm that loves to curl up in bed with a good book at night, you probably already have a nightlight of some kind. And as much as you might love what you already have, you’ll rarely find a reading accessory as compact and sleek as the Bookmark Light by Kyouei Design.

This extremely thin bookmark is made from a special film with lines of ink that transmit electricity. LED light shines from the bookmark when the ends are folded together, letting you easily bring light into the darkness of your room. You’ll no longer need to fumble in the darkness for the light switch, or have to carry around an extra source of illumination.

The Bookmark Light can be purchased from anywhere in the world for 1,728 yen (16 USD) plus shipping costs. You can get them on the Kyouei Design online store, where you can see more products in their stylish but surprisingly practical designs.