3D Light Blocking Sleep Mask Adjustable

Compact, portable sleep mask weighing only 45g. Dimensions: 18.5 × 15.5 × 4.5 cm (unfolded); folds to 12 × 8 × 3 cm for easy packing. Materials: outer—polyester with OEKO-TEX® Standard 100 Class II certification (skin-safe); inner—100% cotton; cushion core—certified sponge free from formaldehyde and heavy metals. Strap elasticity tested to 420 cm circumference; 3D cavity height: 7 mm at centre point above eyes. No compromises on function: pure mechanical light blocking via geometry—not fabric opacity alone. The elevated dome shape seals light at the brow ridge and zygomatic arch, not by tight compression. This makes it uniquely appropriate for migraine sufferers needing darkness without trigeminal nerve stimulation, or post-surgical recovery where pressure must be strictly avoided. Real-use validation: consistently rated top-tier for ‘no-adjustment-needed’ wear in independent UK user trials (n=127), especially during turbulent flights or shared dormitory settings. Also preferred by audiobook listeners and ASMR users seeking visual silence without auditory interference—zero rustle noise from stiff materials. Care simplicity ensures hygiene compliance: cold hand wash removes oils and salts without degrading fibres or adhesives used in multi-layer assembly.