​A sleep mask (also called an eye mask) is a wearable covering for your eyes, typically made from soft fabric or other gentle materials. Its main purpose is to block out light, helping the user sleep more comfortably in bright environments.

How It Works
Sleep masks block out ambient light by sitting snugly over your eyes. By reducing or eliminating light exposure, the mask helps:

• Stimulate melatonin production (the sleep hormone).
• Support circadian rhythm (your body’s internal clock).
• Improve sleep onset and quality, especially in lit environments or while traveling.

​🧩 Types of Sleep Masks

1. Basic Fabric Mask
   Simple, flat design. Blocks light but may apply pressure to eyes.
   
2. Contoured/3D Mask
   Molded to fit around the eyes without direct contact. Great for people with eyelash extensions or sensitive eyes.
   
3. Weighted Mask
   Applies gentle pressure (like a weighted blanket) for a calming effect.
   
4. Cooling/Warming Gel Mask
   Used for therapeutic benefits, like reducing puffiness or soothing headaches.
   
5. Wrap-around Mask
   Often has ear coverage and deeper sides to block out side light and sound.
   
6. Aromatherapy Mask
   Infused with calming scents like lavender or chamomile.
   

💤 Benefits of Sleep Masks

• Improve sleep quality and duration
  
• Help with insomnia and light sensitivity
  
• Support napping in bright places (e.g., planes, hospitals, daytime)
  
• Aid in migraine relief and eye strain
  
• Enhance meditation or relaxation routines
  

⚠️ Potential Drawbacks

• Can feel hot or sweaty in warm environments
  
• Might shift during sleep or feel restrictive
  
• Risk of skin irritation if not washed regularly
  
• Some types may apply uncomfortable pressure on eyes
  

🧠 Who Can Benefit Most?

• Light sleepers
  
• Shift workers
  
• Travelers (especially frequent flyers)
  
• People with migraines or headaches
  
• Those living in bright urban areas
  

✅ How to Choose the Right Sleep Mask

1. Fit & Comfort
   
   • Shouldn't press on your eyes
     
   • Adjustable strap helps customize fit
     
2. Light Blocking Ability
   
   • Choose full-coverage or contoured for better blackout
     
3. Material
   
   • Go for breathable, skin-friendly materials
     
4. Weight
   
   • Some prefer lightweight for sleeping; others benefit from slight pressure
     
5. Purpose
   
   • Cooling? Aromatherapy? Just sleep aid? Match mask type to your need
     
6. Maintenance
   
   • Machine washable or easy to clean is ideal for daily use
     

🧼 Care and Hygiene

• Wash regularly (especially if you have oily skin or wear creams)
  
• Use gentle detergents
  
• Replace when it loses shape, elasticity, or becomes worn out
  

🔁 Alternatives or Complements

• Blackout curtains (for full-room darkness)
  
• White noise machines (to pair with light-blocking)
  
• Blue-light blocking glasses (before bed)
  
• Eye pillows (heavier and used mostly for relaxation or yoga)