Imagine your days with more energy
Preview text: Tired doesn’t have to be your normal—get clarity tonight
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- Subject
- Imagine your days with more energy
- Preview text
- Tired doesn’t have to be your normal—get clarity tonight
- From
- newsletter@
sleepdoctor.com - Brand
- Sleep Doctor
- ESP
- Klaviyo
- Sent
- Tue Apr 21, 2026, 4:00 AM ET
- Sent to
- singularsleep.com, sleepdoctor.com
- Size
- 93 KB
- Images
- 16
- Links
- 29, 10 of them buttons
- Subject length
- 34 characters
Against Sleep Doctor's usual
Sent in the 4 AM hour, which holds 2% of its emails; 23% arrive in the 9 AM hour. The subject is 34 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
- Imagine your days with more energy
- Date
- Tue, 21 Apr 2026 08:00:19 +0000 (UTC)
- Message-ID domain
- geopod-ismtpd-51
- 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 o1384.shared.klaviyomail.com [149.72.156.203] by our receiving server with ESMTPS
- by recvd-…-n6svj with SMTP
- from (unnamed) by geopod-ismtpd-51 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
| Apr 27, 2026 3:30 AM | Is your sleep routine based on a lie? | |
| Apr 26, 2026 3:30 AM | 5 overlooked tools for a better night’s sleep 🌙 | |
| Apr 22, 2026 3:30 AM | How to reclaimed your energy with sleep apnea | |
| Apr 21, 2026 4:00 AM | Imagine your days with more energy (this email) | |
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| Apr 19, 2026 3:30 AM | Why your allergies are ruining your sleep | |
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