The 90-minute rule

Preview text: Fun fact, ... Your core body temperature drops about 90 minutes before sleep. It's one of…

Sandland SleepTuesday, Jun 23, 2026 at 12:15 AM EasternKlaviyo
Sandland SleepThe 90-minute rule
Subject
The 90-minute rule
Preview text
Fun fact, ... Your core body temperature drops about 90 minutes before sleep. It's one of…
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hello@sandlandsleep.com
Sent
Tue Jun 23, 2026, 12:15 AM ET
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sandlandsleep.com
Size
8 KB
Images
1
Links
4
Subject length
18 characters

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Sent in the 12 AM hour, which holds 2% of its emails; 46% arrive in the 12 PM hour. The subject is 18 characters; its average is 33.

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From
Sandland Sleep <[email protected]>
Subject
The 90-minute rule
Date
Tue, 23 Jun 2026 04:15:02 +0000 (UTC)
Message-ID domain
geopod-ismtpd-76
Return-Path domain
mail.sandlandsleep.com
DKIM signature
d=sandlandsleep.com s=kl2
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Sent just before and after

Jul 6, 2026 12:15 PMLong weekend wreck your sleep? 25% off through midnight
Jun 24, 2026 9:14 PMThe science behind your sleep struggles
Jun 23, 2026 9:11 PMStill thinking about it?
Jun 23, 2026 12:15 AMThe 90-minute rule (this email)
Jun 8, 2026 12:15 PMYou fall asleep fine. Then 3am, wide awake and too warm.
Jun 4, 2026 10:34 PMThe science behind your sleep struggles
Jun 3, 2026 10:33 PMStill thinking about it?

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