Your Sleep Quality Deserves An Upgrade!

Preview text: Find your next mattress with our expert top picks

Sleep FoundationMonday, Jun 29, 2026 at 6:30 AM EasternKlaviyo
Sleep FoundationYour Sleep Quality Deserves An Upgrade!
Subject
Your Sleep Quality Deserves An Upgrade!
Preview text
Find your next mattress with our expert top picks
From
newsletter@sleepfoundation.org
Sent
Mon Jun 29, 2026, 6:30 AM ET
Size
72 KB
Images
12
Links
26, 9 of them buttons
Subject length
39 characters

Against Sleep Foundation's usual

Sent in the 6 AM hour, which holds 9% of its emails; 29% arrive in the 12 PM hour. The subject is 39 characters; its average is 45.

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
Sleep Foundation <[email protected]>
Subject
Your Sleep Quality Deserves An Upgrade!
Date
Mon, 29 Jun 2026 10:30:39 +0000 (UTC)
Message-ID domain
geopod-ismtpd-9
Return-Path domain
email.sleepfoundation.org
DKIM signature
d=sleepfoundation.org s=kl2
List-Unsubscribe
Present, one-click

Servers it passed through, newest first

  1. from o1359.shared.klaviyomail.com [198.37.144.184] by our receiving server with ESMTPS
  2. by recvd-…-s2s55 with SMTP
  3. from (unnamed) by geopod-ismtpd-9 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

More from Sleep Foundation

All Sleep Foundation emails

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.