Your sleep debt just came due

Preview text: It's time to pay up

ZestTuesday, Aug 18, 2026 at 12:03 PM EasternKlaviyo
ZestYour sleep debt just came due
Subject
Your sleep debt just came due
Preview text
It's time to pay up
From
hello@takezest.com
Brand
Zest
Sent
Tue Aug 18, 2026, 12:03 PM ET
Size
56 KB
Images
23
Links
25, 1 of them buttons
Subject length
29 characters

Against Zest's usual

Sent in the 12 PM hour, which holds 21% of its emails; 38% arrive in the 10 AM hour. The subject is 29 characters; its average is 30.

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
Jason from Zest <[email protected]>
Subject
Your sleep debt just came due
Date
Tue, 18 Aug 2026 16:03:22 +0000
Message-ID domain
klaviyomail.com
Return-Path domain
k3.send.takezest.com
DKIM signature
d=shared.klaviyomail.com s=def1; d=send.takezest.com s=mtd1
List-Unsubscribe
Present, one-click

Servers it passed through, newest first

  1. from (unnamed) by kmta-mta-blue-….servers.clovesoftware.com with SMTP

Other sending headers (names only): X-Mailer-Info-Extra2, X-Mailer-Info, X-Mailer-Info-Extra, X-Kmail-Account, X-Kmail-Message, X-Kmail-Ops, X-Report-Abuse

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Sent just before and after

Aug 26, 2026 9:42 PMYou're this close to better mornings 🤏
Aug 25, 2026 12:02 PMHow delayed-release caffeine works
Aug 20, 2026 10:05 AM"This stuff works!"
Aug 18, 2026 12:03 PMYour sleep debt just came due (this email)
Aug 13, 2026 12:30 PMDo you need 1, 2, or 3 wake-up pills?
Aug 11, 2026 12:30 PMReady for reality?
Aug 6, 2026 10:01 AM"Little magic caffeine pill"

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