“This is the best mattress I’ve ever used”

Preview text: Howard’s review stopped us in our tracks.

Luff SleepFriday, Aug 21, 2026 at 12:55 AM EasternKlaviyo
Luff Sleep“This is the best mattress I’ve ever used”
Subject
“This is the best mattress I’ve ever used”
Preview text
Howard’s review stopped us in our tracks.
From
hello@luffsleep.co.uk
Sent
Fri Aug 21, 2026, 12:55 AM ET
Sent to
fluffsleep.com
Size
47 KB
Images
8
Links
9, 5 of them buttons
Subject length
42 characters

Against Luff Sleep's usual

Sent in its busiest hour, 12 AM, which holds 12% of its emails. The subject is 42 characters; its average is 35.

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
Luff Sleep <[email protected]>
Subject
“This is the best mattress I’ve ever used”
Date
Fri, 21 Aug 2026 04:55:07 +0000
Message-ID domain
klaviyomail.com
Return-Path domain
k3.send.luffsleep.co.uk
DKIM signature
d=shared.klaviyomail.com s=def1; d=send.luffsleep.co.uk 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-Flow, X-Kmail-Message, X-Kmail-Ops, X-Report-Abuse

Report this email

Sent just before and after

Aug 22, 2026 6:34 AMWhat Sleep Could Feel Like
Aug 21, 2026 1:30 PM"British sleep experts..." Here’s what Vogue said about Luff 🌟
Aug 21, 2026 6:34 AMWe Saw You Looking
Aug 21, 2026 12:55 AM“This is the best mattress I’ve ever used” (this email)
Aug 19, 2026 12:52 AMTurn your bed into a hotel suite
Aug 18, 2026 12:48 AMSleep cleaner. Sleep cooler. Sleep bamboo.
Aug 17, 2026 12:45 AMThe Truth... Why Luff Exists

More from Luff Sleep

All Luff Sleep 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. Unsubscribe anytime.