Overnight Mask
Overnight Mask — a leave-on treatment, sometimes called a sleeping mask, applied as the final step before bed and worn until morning. It usually contains hydrating and often occlusive ingredients that help seal in moisture and support the skin's natural overnight recovery.
Key points
- Overnight masks are left on while you sleep, giving ingredients extended contact time compared with rinse-off masks.
- They often combine humectants with occlusives to reduce water loss and leave skin looking plumper by morning.
- Applied as the last step in an evening routine, they can help seal in the products layered underneath.
- They are generally used a few nights per week rather than as a replacement for a nightly moisturizer.
Frequently asked
Can an overnight mask replace my night cream?
An overnight mask can serve as your final moisturizing step on the nights you use it, but it is usually meant as a periodic treatment rather than a nightly staple. Follow the product's recommended frequency.
Will an overnight mask stain my pillowcase?
Most sleeping masks are designed to absorb before you settle in, so they rarely transfer heavily. Applying a thin layer and giving it a few minutes to sink in helps minimize any residue.
Related topics
This is a foundational entry in the SYNC Skin Encyclopedia and is expanded over time. Educational information only — not medical advice.
