Does a sleep mask really block out light?

Yes, a high-qualitysleep mask against lightcan effectively block out disturbing brightness and thus ensure a deep sleep.

TheSoftNAP™ sleep mask from OMNANAoffersabsolute light blockage, thanks to:
✔Specially developed, opaque satin
✔perfect fitthat does not let any light through
✔Soft fabricthat gently hugs the contours of the face

Regardless of whetherdaylight, street lamps or screen light- with theSoftNAP™ sleep maskyou experience real darkness and can sleep better,