One small upgrade. Every single night.

Preview text: The best investments are the ones you keep using.

SlumblrSaturday, Aug 1, 2026 at 1:00 AM EasternKlaviyo
SlumblrOne small upgrade. Every single night.
Subject
One small upgrade. Every single night.
Preview text
The best investments are the ones you keep using.
From
support@slumblr.com
Brand
Slumblr
Sent
Sat Aug 1, 2026, 1:00 AM ET
Sent to
slumblr.com
Size
47 KB
Images
8
Links
11, 4 of them buttons
Subject length
38 characters

Against Slumblr's usual

Sent in the 1 AM hour, which holds 9% of its emails; 17% arrive in the 3 AM hour. The subject is 38 characters; its average is 37.

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From
Slumblr <[email protected]>
Subject
One small upgrade. Every single night.
Date
Sat, 01 Aug 2026 05:00:33 +0000 (UTC)
Message-ID domain
geopod-ismtpd-16
Return-Path domain
hello.slumblr.com
DKIM signature
d=slumblr.com s=kl2
List-Unsubscribe
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  1. from o1409.shared.klaviyomail.com [149.72.85.18] by our receiving server with ESMTPS
  2. by recvd-…-m59vj with SMTP
  3. from (unnamed) by geopod-ismtpd-16 with HTTP

Other sending headers (names only): X-Kmail-Account, X-Kmail-Message, X-Kmail-Ops, X-Report-Abuse, X-SG-EID, X-SG-ID, X-Entity-ID

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Sent just before and after

Aug 12, 2026 11:01 PMYour routine is changing. Your sleep should too.
Aug 7, 2026 3:00 AMIf you're folding your pillow, it's time for an upgrade
Aug 5, 2026 3:00 AMYour pillow isn't the problem. Its shape is.
Aug 1, 2026 1:00 AMOne small upgrade. Every single night. (this email)
Jul 30, 2026 7:50 AMThat comfort upgrade is still waiting.
Jul 29, 2026 7:44 AMStill thinking about that product? 👀
Jul 23, 2026 12:41 PMThe one thing nobody tells you about getting older

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