White Noise vs. Pink Noise vs. Brown Noise
Preview text: What's the diference and which is best for sleep?

Use this example
- Subject
- White Noise vs. Pink Noise vs. Brown Noise
- Preview text
- What's the diference and which is best for sleep?
- From
- support@
ozlosleep.co.uk - Brand
- Ozlo Sleep
- ESP
- Klaviyo
- Sent
- Tue Oct 20, 2026, 4:31 AM ET
- Sent to
- United Kingdom (ozlosleep.co.uk)
- Size
- 44 KB
- Images
- 13
- Links
- 14, 8 of them buttons
- Subject length
- 42 characters
Against Ozlo Sleep's usual
Sent in the 4 AM hour, which holds 21% of its emails; 25% arrive in the 9 AM hour. The subject is 42 characters; its average is 33.
Email headers
What the brand's servers put on this email. Our receiving servers, the address we subscribed with and unsubscribe links are left out.
- From
- OZLO Sleep UK <[email protected]>
- Subject
- White Noise vs. Pink Noise vs. Brown Noise
- Date
- Tue, 20 Oct 2026 08:31:59 +0000
- Message-ID domain
- klaviyomail.com
- Return-Path domain
- k3.send.ozlosleep.co.uk
- DKIM signature
- d=shared.klaviyomail.com s=def1; d=send.ozlosleep.co.uk s=mtd1
- List-Unsubscribe
- Present, one-click
Servers it passed through, newest first
- from (unnamed) by kmta-mta-green-….servers.clovesoftware.com with SMTP
Other sending headers (names only): X-Mailer-Info-Extra2, X-Mailer-Info, X-Mailer-Info-Extra, X-Kmail-Account, X-Kmail-Flow, X-Kmail-Message, X-Kmail-Ops, X-Report-Abuse
Sent just before and after
| Oct 22, 2026 4:31 AM | How Ozlo's CMO Stays rested while traveling constantly | |
| Oct 22, 2026 4:31 AM | The science of sleep cycles | |
| Oct 20, 2026 4:32 AM | The science of sound and sleep | |
| Oct 20, 2026 4:31 AM | White Noise vs. Pink Noise vs. Brown Noise (this email) | |
| Oct 20, 2026 4:31 AM | Let's do the sleep math | |
| Oct 20, 2026 4:31 AM | The science of sleep cycles | |
| Oct 19, 2026 4:00 AM | 6 new sleep findings worth knowing |
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Sent the same day by similar brands
Same ESP and the closest weekly volume, sent on Oct 20, 2026.











