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The most important sleep stage.

Are you getting enough?

SleepalphaSaturday, Aug 22, 2026 at 2:34 PM EasternKlaviyo
SleepalphaThe most important sleep stage.
Subject
The most important sleep stage.
Preview text
Are you getting enough?
From
info@sleepalpha.co.uk
Sent
Sat Aug 22, 2026, 2:34 PM ET
Size
44 KB
Images
10
Links
13, 3 of them buttons
Subject length
31 characters

Against Sleepalpha's usual

Sent in the 2 PM hour, which holds 17% of its emails; 19% arrive in the 3 PM hour. The subject is 31 characters; its average is 39.

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From
SLEEPALPHA™ <[email protected]>
Subject
The most important sleep stage.
Date
Sat, 22 Aug 2026 18:34:57 +0000 (UTC)
Message-ID domain
geopod-ismtpd-22
Return-Path domain
send.sleepalpha.co.uk
DKIM signature
d=sleepalpha.co.uk s=kl2
List-Unsubscribe
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  1. by recvd-…-mpxnb with SMTP
  2. from (unnamed) by geopod-ismtpd-22 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

Sep 6, 2026 5:25 AM(!) You have 1 new message
Aug 24, 2026 6:29 AMThe 3 things a good night's sleep actually needs
Aug 23, 2026 3:25 PMEnhance your most restorative stage of sleep
Aug 22, 2026 2:34 PMThe most important sleep stage. (this email)
Aug 14, 2026 12:32 PMUnlock This Recovery Stage of Sleep 🌙
Aug 11, 2026 3:04 PM2 Products taken together = 1 outcome · Resent
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