Blog
Sleep science, noise research, and the story behind Veil.
Sleep Sound Apps
The 8 Best White Noise Apps in 2026: Free and Paid, Compared
Eight apps for iPhone and Android, including free and ad-free options, compared on how much you can shape the sound, offline playback and what it costs to keep.
Sleep Sound Apps
The 7 Best Brown Noise Apps in 2026: Free and Paid, Compared
Seven apps compared on how their brown noise is made, which offer it free without ads, how much you can shape it, and what it costs to keep.
Noise Colors
Blue Noise for Sleep: What It Is and When to Use It
Why blue noise is the mirror image of pink, what it sounds like, and the narrow but real case for using it at night.
Noise Colors
Green Noise for Sleep: What It Is and How It Sounds
What green noise sounds like, how it compares with white, pink and brown noise, and what the research can honestly say about using it for sleep.
Noise Colors
Grey Noise for Sleep: Gray Noise Explained
Why grey noise is shaped around human hearing, what makes it different from white noise, and who may prefer its more even sound.
Sleep Science
White Noise vs Pink Noise vs Brown Noise: Which Is Best for Sleep?
The real differences between noise colors, backed by research. Which one works depends on your brain, not a TikTok trend.
Sleep Sounds
Best Fan Noise for Sleeping (and Why It Works)
Why fan noise works for masking, five core fan types compared, and how Veil generates seven distinct fan sounds on your phone.
Focus & ADHD
Brown Noise for ADHD and Focus: What the Research Actually Says
Brown noise went viral for ADHD focus. Here's what the science says, what Reddit and TikTok get right (and wrong), and how to use it effectively.
Origin Story
Why I Built Veil: A Better White Noise App
I'm a light sleeper who tried Dohm, Lectrofan, and every white noise app. None were right. So I built one that generates sound in real time.