They Sent It

Sleep cleaner. Sleep cooler. Sleep bamboo.

Here’s why you’ll never go back to cotton.

Luff SleepTuesday, Aug 18, 2026 at 12:48 AM EasternKlaviyo
Luff SleepSleep cleaner. Sleep cooler. Sleep bamboo.
Subject
Sleep cleaner. Sleep cooler. Sleep bamboo.
Preview text
Here’s why you’ll never go back to cotton.
From
hello@luffsleep.co.uk
Sent
Tue Aug 18, 2026, 12:48 AM ET
Sent to
fluffsleep.com
Size
53 KB
Images
10
Links
11, 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
Sleep cleaner. Sleep cooler. Sleep bamboo.
Date
Tue, 18 Aug 2026 04:48:22 +0000 (UTC)
Message-ID domain
geopod-ismtpd-4
Return-Path domain
k1.send.luffsleep.co.uk
DKIM signature
d=send.luffsleep.co.uk s=s1
List-Unsubscribe
Present, one-click

Servers it passed through, newest first

  1. by recvd-canary-…-dn8xh with SMTP
  2. from (unnamed) by geopod-ismtpd-4 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

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Aug 19, 2026 12:52 AMTurn your bed into a hotel suite
Aug 18, 2026 12:48 AMSleep cleaner. Sleep cooler. Sleep bamboo. (this email)
Aug 17, 2026 12:45 AMThe Truth... Why Luff Exists
Aug 16, 2026 12:44 AMWelcome to Luff: Here’s 10% off your first order
Aug 12, 2026 11:30 AMFibreglass in mattresses: myth or reality?

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