What’s inside your ears at night?
Preview text: Most earbuds and headphones aren’t built for sleep.
Using this email in an article? Credit: Manta Sleep email via They Sent It, with a link to this page. Full-size image
- Subject
- What’s inside your ears at night?
- Preview text
- Most earbuds and headphones aren’t built for sleep.
- From
- support@
mantasleep.com - Brand
- Manta Sleep
- ESP
- Klaviyo
- Sent
- Tue Sep 8, 2026, 12:00 AM ET
- Sent to
- mantasleep.com
- Size
- 37 KB
- Images
- 11
- Links
- 12, 5 of them buttons
- Subject length
- 34 characters
Against Manta Sleep's usual
Sent in the 12 AM hour, which holds 2% of its emails; 19% arrive in the 10 AM hour. The subject is 34 characters; its average is 28.
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
- Manta Sleep <[email protected]>
- Subject
- What’s inside your ears at night?
- Date
- Tue, 08 Sep 2026 04:00:53 +0000 (UTC)
- Message-ID domain
- geopod-ismtpd-83
- Return-Path domain
- klaviyo.mantasleep.com
- DKIM signature
- d=mantasleep.com s=kl2
- List-Unsubscribe
- Present, one-click
Servers it passed through, newest first
- by recvd-…-mw2p9 with SMTP
- from (unnamed) by geopod-ismtpd-83 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
| Sep 14, 2026 8:03 AM | September has a sleep problem | |
| Sep 12, 2026 1:51 PM | 2 million people are sleeping better | |
| Sep 11, 2026 9:03 AM | Sleep masks suck | |
| Sep 8, 2026 12:00 AM | What’s inside your ears at night? (this email) | |
| Sep 4, 2026 8:01 AM | You worked all summer. Take a break. | |
| Sep 2, 2026 7:30 PM | Beat the September grind | |
| Aug 31, 2026 2:00 AM | What’s your problem? |
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