Your Sleep Quality Deserves An Upgrade!
Preview text: Find your next mattress with our expert top picks
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- Subject
- Your Sleep Quality Deserves An Upgrade!
- Preview text
- Find your next mattress with our expert top picks
- From
- newsletter@
sleepfoundation.org - Brand
- Sleep Foundation
- ESP
- Klaviyo
- Sent
- Mon Sep 28, 2026, 1:33 PM ET
- Size
- 72 KB
- Images
- 12
- Links
- 26, 9 of them buttons
- Subject length
- 39 characters
Against Sleep Foundation's usual
Sent in the 1 PM hour, which holds 13% of its emails; 29% arrive in the 12 PM hour. The subject is 39 characters; its average is 45.
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 Foundation <[email protected]>
- Subject
- Your Sleep Quality Deserves An Upgrade!
- Date
- Mon, 28 Sep 2026 17:33:01 +0000 (UTC)
- Message-ID domain
- geopod-ismtpd-78
- Return-Path domain
- email.sleepfoundation.org
- DKIM signature
- d=sleepfoundation.org s=kl2
- List-Unsubscribe
- Present, one-click
Servers it passed through, newest first
- by recvd-…-v9qqk with SMTP
- from (unnamed) by geopod-ismtpd-78 with HTTP
Other sending headers (names only): X-Kmail-Account, X-Kmail-Flow, X-Kmail-Message, X-Kmail-Ops, X-Report-Abuse, X-SG-EID, X-SG-ID, X-Entity-ID
Sent just before and after
| Oct 13, 2026 12:46 AM | Welcome to the 14 Nights To Better Sleep Program | |
| Oct 12, 2026 1:35 PM | Elevate Your Bedtime Bliss: Discover the Best Sheets | |
| Oct 5, 2026 1:34 PM | We tested hundreds of pillows so you can skip straight to the good ones | |
| Sep 28, 2026 1:33 PM | Your Sleep Quality Deserves An Upgrade! (this email) | |
| Sep 21, 2026 1:22 PM | We tested thousands of sleep products. Here’s what’s worth getting. | |
| Sep 14, 2026 1:08 PM | We tested 2,000 beds. Here is what we found for every type of sleeper. | |
| Sep 7, 2026 12:54 PM | Elevate Your Bedtime Bliss: Discover the Best Sheets |
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