Exhausted but can't fall asleep? Here is why.
Preview text: Discover how to flip the switch from stress to sleep
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- Subject
- Exhausted but can't fall asleep? Here is why.
- Preview text
- Discover how to flip the switch from stress to sleep
- From
- newsletter@
sleepdoctor.com - Brand
- Sleep Doctor
- ESP
- Klaviyo
- Sent
- Sun May 3, 2026, 3:30 AM ET
- Sent to
- singularsleep.com, sleepdoctor.com
- Size
- 101 KB
- Images
- 10
- Links
- 25, 5 of them buttons
- Subject length
- 45 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 45 characters; its average is 37.
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- From
- Sleep Doctor <[email protected]>
- Subject
- Exhausted but can't fall asleep? Here is why.
- Date
- Sun, 03 May 2026 07:30:30 +0000 (UTC)
- Message-ID domain
- geopod-ismtpd-35
- Return-Path domain
- email.sleepdoctor.com
- DKIM signature
- d=sleepdoctor.com s=kl2
- List-Unsubscribe
- Present, one-click
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- from o1281.shared.klaviyomail.com [167.89.72.23] by our receiving server with ESMTPS
- by recvd-…-vb562 with SMTP
- from (unnamed) by geopod-ismtpd-35 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
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