Your energy dips have a name: chronotype
Preview text: It's not a discipline problem. It's biology. See which of four sleep types fits you best.
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- Subject
- Your energy dips have a name: chronotype
- Preview text
- It's not a discipline problem. It's biology. See which of four sleep types fits you best.
- From
- info@
send.sleepdoctor.com - Brand
- Sleep Doctor
- ESP
- Klaviyo
- Sent
- Wed Jul 29, 2026, 1:00 PM ET
- Sent to
- americansleepassociation.net, singularsleep.com, United States (sleepassociation.us), sleepdoctor.com
- Size
- 94 KB
- Images
- 15
- Links
- 34, 6 of them buttons
- Subject length
- 40 characters
Against Sleep Doctor's usual
Sent in the 1 PM hour, which holds 6% of its emails; 23% arrive in the 9 AM hour. The subject is 40 characters; its average is 37.
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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
- Your energy dips have a name: chronotype
- Date
- Wed, 29 Jul 2026 17:00:13 +0000
- Message-ID domain
- cio151267.send.sleepdoctor.com
- Return-Path domain
- cio151267.send.sleepdoctor.com
- DKIM signature
- d=cio151267.send.sleepdoctor.com s=cio
- List-Unsubscribe
- Present, one-click
- Mailer
- Customer.io (…; +https://whatis.customeriomail.com)
Servers it passed through, newest first
- from v5104.….usw1.send.mailgun.net [159.135.236.104] by our receiving server with ESMTPS
- by … with HTTP
Other sending headers (names only): X-Mailgun-Sid, X-Mailgun-Sending-Ip, X-Mailgun-Dkim, X-Mailgun-Native-Send, X-Mailgun-Track-Clicks, X-Mailgun-Track-Opens, X-Report-Abuse-To, X-Mailgun-Variables
Sent just before and after
| Jul 31, 2026 10:52 AM | What worked for sleep this July · Resent | |
| Jul 30, 2026 12:03 PM | What worked for sleep this July | |
| Jul 29, 2026 6:15 PM | See something you like? | |
| Jul 29, 2026 1:00 PM | Your energy dips have a name: chronotype (this email) | |
| Jul 29, 2026 12:01 PM | 60,000+ people are sleeping better. Here's why. | |
| Jul 28, 2026 1:00 PM | Turn pre-tax dollars into better nights | |
| Jul 28, 2026 1:50 AM | See something you like? |
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