Product and fit

What makes NightSeal different from a flat sleep mask?

NightSeal uses contoured 3D eye cups that create space around the eyelids and lashes. This design helps reduce direct eye-area contact while the mask blocks distracting light around the face.

Does NightSeal guarantee complete blackout?

NightSeal is designed to create a significantly darker personal sleep space. Results can vary with face shape, sleeping position, and adjustment. For the best fit, position the nose contour first and then tighten the strap only enough to keep the mask secure.

Will it press against my eyes or eyelashes?

The recessed eye cups are designed to leave room around the eyes and reduce direct contact. Individual fit varies, so repositioning the mask or adjusting the strap may improve comfort.

Can side sleepers use it?

Many customers choose contoured masks for different sleeping positions. Comfort depends on face shape, pillow, and preferred strap tension, so we recommend a secure but gentle fit.

Is NightSeal a medical device?

No. NightSeal is a general wellness and comfort accessory. It is not intended to diagnose, treat, cure, or prevent any medical condition.

Care

How should I care for the mask?

For gentle routine care, spot clean or hand wash carefully with cool water and mild detergent, then air dry completely before use. Avoid bleach, high heat, and aggressive wringing. Follow any care instructions included with your product.

Orders and delivery

How long does U.S. delivery take?

Orders are normally processed within 1–2 business days. Estimated U.S. transit time after dispatch is approximately 7–12 business days, for an estimated total delivery window of about 8–14 business days. Carrier delays and other events outside our control can extend these estimates.

How do I track my order?

Use the tracking link in your shipping confirmation email. Tracking can take 24–48 hours after dispatch to show movement. You can also visit our Track Your Order page.

What is the return window?

Eligible purchases made directly through lumierolife.com are covered by our 60-day satisfaction guarantee. Conditions and instructions are explained in our Refund Policy.

How can I contact Lumiero?

Email contact@lumierolife.com. Our support team normally responds within 24–48 hours.