Adjustable mask

A system comprising:

• a sleep mask;
• the sleep mask including at least:
• a housing including one or more sites for installing electronic components,
• at least two holes for mounting light pipes for shining light on eyes of a user,
• a light pipe system including one or more light pipes held in at least the two holes, a first of the two holes being positioned so that when a light is activated, the light pipe system illuminates a first of two user eyes via a first of the two holes and a second of the two holes being positioned so that the light pipe system illuminates a second of the two user eyes via a second of the two user holes;
• electronics installed at the one or more sites, the electronics including a controller that controls a light source that is in communication with the light pipe system to produce of pattern of light on a side of the sleep mask that faces the user while the sleep mask is being worn;
• and
• an adjustable strap that is adjustable to different head sizes, ear sizes, and user positions, wherein:
• the light pipes include a first translucent structure and a second translucent structure;
• the first and second translucent structures protrude from an inner side of the housing towards the eyes of the user;
• each of the first and second translucent structures include an enlarged part at an end of the respective translucent structure, the each of the first and second translucent structures extending through a respective hole of the two holes, the enlarged parts being sized to anchor the light pipes in the two holes so as to hold the electronics, the light pipe system, and the sleep mask together.