Why thousands are upgrading their sleep
Preview text: Discover why Slumblr is becoming part of people’s nightly routine.
Using this email in an article? Credit: Slumblr email via They Sent It, with a link to this page. Full-size image
- Subject
- Why thousands are upgrading their sleep
- Preview text
- Discover why Slumblr is becoming part of people’s nightly routine.
- From
- support@
slumblr.com - Brand
- Slumblr
- ESP
- Klaviyo
- Sent
- Fri Sep 25, 2026, 3:00 AM ET
- Sent to
- slumblr.com
- Size
- 33 KB
- Images
- 5
- Links
- 2, 2 of them buttons
- Subject length
- 39 characters
Against Slumblr's usual
Sent in its busiest hour, 3 AM, which holds 17% of its emails. The subject is 39 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
- Slumblr <[email protected]>
- Subject
- Why thousands are upgrading their sleep
- Date
- Fri, 25 Sep 2026 07:00:37 +0000 (UTC)
- Message-ID domain
- geopod-ismtpd-47
- Return-Path domain
- hello.slumblr.com
- DKIM signature
- d=slumblr.com s=kl2
- List-Unsubscribe
- Present, one-click
Servers it passed through, newest first
- by recvd-…-2mhv6 with SMTP
- from (unnamed) by geopod-ismtpd-47 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
| Oct 14, 2026 4:07 AM | Welcome to Slumblr 🖤 Mid-season Sale access unlocked | |
| Sep 28, 2026 6:09 AM | A little extra help deciding 🎁 | |
| Sep 26, 2026 6:07 AM | That comfort upgrade is still waiting. | |
| Sep 25, 2026 3:00 AM | Why thousands are upgrading their sleep (this email) | |
| Sep 23, 2026 11:00 PM | Sleeping 8 hours but still tired? | |
| Sep 20, 2026 1:23 AM | A little extra help deciding 🎁 | |
| Sep 18, 2026 1:22 AM | That comfort upgrade is still waiting. |
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Your Halloween weekend treat is here 🎃
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