Is it important to choose the right mattress?
Preview text: Let's find you the 'one' - the right one.

Use this example
- Subject
- Is it important to choose the right mattress?
- Preview text
- Let's find you the 'one' - the right one.
- From
- info@
sleepsonno.com - Brand
- Sonno
- ESP
- Klaviyo
- Sent
- Mon Oct 12, 2026, 6:40 AM ET
- Size
- 88 KB
- Images
- 20
- Links
- 34, 12 of them buttons
- Subject length
- 45 characters
Against Sonno's usual
Sent in its busiest hour, 6 AM, which holds 34% of its emails. The subject is 45 characters; its average is 44.
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
- Sonno <[email protected]>
- Reply-To
- [email protected]
- Subject
- Is it important to choose the right mattress?
- Date
- Mon, 12 Oct 2026 10:40:49 +0000 (UTC)
- Message-ID domain
- geopod-ismtpd-17
- Return-Path domain
- send.sleepsonno.com
- DKIM signature
- d=sleepsonno.com s=kl2
- List-Unsubscribe
- Present, one-click
Servers it passed through, newest first
- by recvd-…-hbbml with SMTP
- from (unnamed) by geopod-ismtpd-17 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 17, 2026 6:41 AM | Next Stop: Heaven | |
| Oct 15, 2026 2:00 AM | A heavy blanket that doesn't trap heat? Yes, really! 💙🛋️ | |
| Oct 13, 2026 6:01 AM | Your brain can be trained to fall asleep. Here's how. 🎧 | |
| Oct 12, 2026 6:40 AM | Is it important to choose the right mattress? (this email) | |
| Oct 9, 2026 6:39 AM | Introducing better sleep | |
| Oct 9, 2026 6:02 AM | The secret to high-quality comfort at home 🛏️✨ | |
| Oct 7, 2026 4:00 AM | Hotel-quality luxury, right in your own bedroom 👑💤 |
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