Sleeping in real darkness

Streetlights, a partner's lamp, sunrise through cheap curtains, the LED on everything — light is the quiet saboteur of deep sleep, and almost every sleep mask leaks it at the nose. These guides cover what genuine blackout takes and how to choose a mask that survives side sleeping.

The Nocte mask was built for this: contoured blackout cups sealed at the nose bridge. See the mask.

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The best sleep mask, by what's actually keeping you up
Six types of mask, what each one genuinely solves, and the cases where ours is the wrong buy.
The best sleep mask for side sleepers
The spec checklist that predicts comfort: speaker profile, cushion shape, strap design, battery.
What a smart sleep mask actually does
Audio, sensors, wake lights, apps: which of the four you're really buying, and which are worth it.
What makes a sleep mask truly blackout
Almost every eye mask leaks light at the nose. What real darkness takes, and how weighted and silk masks compare.