Last day for 15% off
Preview text: Hi there, We left our Labor Day code active, so if you are feeling like you missed our…

Using this email in an article? Credit: Sleepout Curtains email via They Sent It, with a link to this page. Full-size image
- Subject
- Last day for 15% off
- Preview text
- Hi there, We left our Labor Day code active, so if you are feeling like you missed our…
- From
- sleepout@
mail.sleepoutcurtains.com - Brand
- Sleepout Curtains
- ESP
- Klaviyo
- Sent
- Sun Sep 13, 2026, 5:00 PM ET
- Sent to
- sleepoutcurtain.com
- Size
- 6 KB
- Images
- 1
- Links
- 2, 2 of them buttons
- Subject length
- 20 characters
Against Sleepout Curtains's usual
Sent in the 5 PM hour, which holds 7% of its emails; 19% arrive in the 10 AM hour. The subject is 20 characters; its average is 41.
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
- Sleepout <[email protected]>
- Reply-To
- [email protected]
- Subject
- Last day for 15% off
- Date
- Sun, 13 Sep 2026 21:00:41 +0000 (UTC)
- Message-ID domain
- geopod-ismtpd-18
- Return-Path domain
- send.sleepoutcurtains.com
- DKIM signature
- d=sleepoutcurtains.com s=kl2
- List-Unsubscribe
- Present, one-click
Servers it passed through, newest first
- by recvd-…-k6mh8 with SMTP
- from (unnamed) by geopod-ismtpd-18 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 26, 2026 1:45 PM | 🚨 Portable XL Just Dropped to $89 per curtain | |
| Sep 20, 2026 8:30 AM | 100% blackout without the heavy curtain feel. | |
| Sep 19, 2026 11:45 AM | Our custom curtains are going away for the season | |
| Sep 13, 2026 5:00 PM | Last day for 15% off (this email) | |
| Sep 13, 2026 5:00 PM | internal email | |
| Sep 12, 2026 10:18 AM | You work hard. You deserve 100% darkness. | |
| Sep 12, 2026 10:18 AM | You work hard. You deserve 100% darkness. |
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[Update] Tested Non-Toxic Blackout 💚
Oct 17, 2026 11:39 AM
Sent the same day by similar brands
Same ESP and the closest weekly volume, sent on Sep 13, 2026.







![[Update] Tested Non-Toxic Blackout 💚 - email from Sleepout Curtains](https://img.theysentit.com/sleepout/5119719.t.jpg)

