The 8 Night Sleep Challenge

Preview text: Hey there, We are going to make you a bet. Give us 8 nights. Just 8. Take our 8-Hour Sleep…

Saturday, Mar 21, 2026 at 9:20 AM EasternKlaviyo

Upgraded FormulasThe 8 Night Sleep Challenge

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Subject: The 8 Night Sleep Challenge
Preview text: Hey there, We are going to make you a bet. Give us 8 nights. Just 8. Take our 8-Hour Sleep…
From: hello@upgradedformulas.com
Brand: Upgraded Formulas
ESP: Klaviyo
Sent: Sat Mar 21, 2026, 9:20 AM ET
Size: 65 KB
Images: 12
Links: 12, 2 of them buttons
Subject length: 27 characters

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Sent in the 9 AM hour, which holds 9% of its emails; 22% arrive in the 7 AM hour. The subject is 27 characters; its average is 43.

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