MZOO guides
Choosing a mask, light at night, lash extensions and sleeping on planes and after night shifts.
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How to choose a sleep mask: cup depth, the nose, the strap and the fabric
What separates a mask that blocks light from one that leaks it: cup depth, padding at the nose, thin sides for side sleepers, the strap and the fabric.
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Light at night: why a dark room matters, and where a sleep mask comes in
What light does to the body clock, what two NIH-funded studies found about sleeping with the lights on, and when a mask is the simplest way to get dark.
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Sleeping in lash extensions and makeup: keep the fabric off your lashes
Why a flat mask rubs extensions and mascara, what eye doctors and the FDA say about lash glue and makeup at night, and how deep a cup needs to be.
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Sleep on a plane, in a dorm or after a night shift: making your own dark
What the CDC and NIOSH advise for jet lag and daytime sleep after a night shift, and how a mask, ear plugs and a few habits make a dark room anywhere.
