The science of sleep cycles
Preview text: A Deep Dive into REM vs Deep Sleep
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Use this example
- Subject
- The science of sleep cycles
- Preview text
- A Deep Dive into REM vs Deep Sleep
- From
- support@
ozlosleep.au - Brand
- Ozlo Sleep
- ESP
- Klaviyo
- Sent
- Sat Oct 24, 2026, 4:31 AM ET
- Sent to
- Australia (ozlosleep.au)
- Size
- 44 KB
- Images
- 13
- Links
- 14, 8 of them buttons
- Subject length
- 27 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 27 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 <[email protected]>
- Subject
- The science of sleep cycles
- Date
- Sat, 24 Oct 2026 08:31:39 +0000
- Message-ID domain
- klaviyomail.com
- Return-Path domain
- k3.send.ozlosleep.au
- DKIM signature
- d=shared.klaviyomail.com s=def1; d=send.ozlosleep.au s=mtd1
- List-Unsubscribe
- Present, one-click
Servers it passed through, newest first
- from (unnamed) by kmta-mta-blue-….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 25, 2026 9:31 AM | The Secret Ingredients For Deep Sleep 👌 | |
| Oct 24, 2026 9:11 AM | Did You Doze Off? | |
| Oct 24, 2026 4:32 AM | White Noise vs. Pink Noise vs. Brown Noise | |
| Oct 24, 2026 4:31 AM | The science of sleep cycles (this email) | |
| Oct 24, 2026 4:31 AM | The usual suspects behind Insomnia | |
| Oct 22, 2026 4:32 AM | Let's do the sleep math | |
| Oct 22, 2026 4:31 AM | How Ozlo's CMO Stays rested while traveling constantly |
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Sent the same day by similar brands
Same ESP and the closest weekly volume, sent on Oct 24, 2026.
