7 expert hacks for better travel sleep
Preview text: See the secret weapons Dr. Breus packs to sleep anywhere

Use this example
- Subject
- 7 expert hacks for better travel sleep
- Preview text
- See the secret weapons Dr. Breus packs to sleep anywhere
- From
- newsletter@
sleepdoctor.com - Brand
- Sleep Doctor
- ESP
- Klaviyo
- Sent
- Mon May 18, 2026, 3:30 AM ET
- Sent to
- singularsleep.com, sleepdoctor.com
- Size
- 84 KB
- Images
- 14
- Links
- 27, 8 of them buttons
- Subject length
- 38 characters
Against Sleep Doctor's usual
Sent in the 3 AM hour, which holds 20% of its emails; 23% arrive in the 9 AM hour. The subject is 38 characters; its average is 37.
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
- Sleep Doctor <[email protected]>
- Subject
- 7 expert hacks for better travel sleep
- Date
- Mon, 18 May 2026 07:30:19 +0000 (UTC)
- Message-ID domain
- geopod-ismtpd-79
- Return-Path domain
- email.sleepdoctor.com
- DKIM signature
- d=sleepdoctor.com s=kl2
- List-Unsubscribe
- Present, one-click
Servers it passed through, newest first
- from o1364.shared.klaviyomail.com [198.37.148.224] by our receiving server with ESMTPS
- by recvd-…-lkkbk with SMTP
- from (unnamed) by geopod-ismtpd-79 with HTTP
Other sending headers (names only): X-Kmail-Account, X-Kmail-Message, X-Kmail-Ops, X-Report-Abuse, X-SG-EID, X-SG-ID, X-Entity-ID
Sent just before and after
| May 24, 2026 3:30 AM | The Official Memorial Day Sale for 2026’s Best Mattresses 🇺🇸 | |
| May 21, 2026 1:00 PM | A Gift For Your Best Summer Sleep Yet ✈️ | |
| May 20, 2026 3:30 AM | Vacation is for relaxing, not for earplugs | |
| May 18, 2026 3:30 AM | 7 expert hacks for better travel sleep (this email) | |
| May 17, 2026 5:36 AM | See something you like? | |
| May 17, 2026 3:30 AM | How to beat jet lag + Last chance for 15% off | |
| May 15, 2026 11:30 AM | 3 Days Only: 15% Off Your Home Sleep Study |
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