Your 58% discount - Sleepwhale

Preview text: Sleep better tonight with a limited time offer.

SleepwhaleFriday, Oct 16, 2026 at 7:08 AM EasternKlaviyo
SleepwhaleYour 58% discount - Sleepwhale
Subject
Your 58% discount - Sleepwhale
Preview text
Sleep better tonight with a limited time offer.
From
hello@sleepwhale.com
Sent
Fri Oct 16, 2026, 7:08 AM ET
Size
24 KB
Images
4
Links
5, 1 of them buttons
Subject length
30 characters
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
Sleepwhale <[email protected]>
Subject
Your 58% discount - Sleepwhale
Date
Fri, 16 Oct 2026 11:08:12 +0000 (UTC)
Message-ID domain
geopod-ismtpd-1
Return-Path domain
k1.send.sleepwhale.com
DKIM signature
d=send.sleepwhale.com s=s1
List-Unsubscribe
Present, one-click

Servers it passed through, newest first

  1. by recvd-…-8zl4k with SMTP
  2. from (unnamed) by geopod-ismtpd-1 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

Report this email

Sent just before and after

Oct 29, 2026 3:31 PMHow Sleepwhale Improves Your Sleep Stages...
Oct 22, 2026 4:45 PM30 Nights with Sleepwhale? Check this...
Oct 19, 2026 5:05 AMWhy you wake up at 3am (and what helps)
Oct 18, 2026 10:26 AM10% OFF for more restful nights 💤
Oct 18, 2026 5:03 AMWhy ingredient quality matters more than you think
Oct 17, 2026 5:03 AMUnlock the Secret to Great Sleep
Oct 16, 2026 7:08 AMYour 58% discount - Sleepwhale (this email)

More from Sleepwhale

All Sleepwhale emails

Sent the same day by similar brands

Same ESP and the closest weekly volume, sent on Oct 16, 2026.

Get the Black Friday insights

We're collecting every Black Friday email from more than 50,000 brands as it lands. Get what we find: who starts first, the biggest discounts, and the subject lines that stand out.

Free. You'll get a confirmation email first, and you can unsubscribe anytime.