The science of a better night’s sleep

Preview text: Why temperature is the #1 barrier to deep rest.

Tuesday, Apr 7, 2026 at 12:30 PM EasternKlaviyo

Cool-jamsThe science of a better night’s sleep

Image not available

No image available for this email.

Against Cool-jams's usual

Sent in its busiest hour, 12 PM, which holds 35% of its emails. The subject is 39 characters; its average is 37.

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 o1375.shared.klaviyomail.com [149.72.197.103] by our receiving server with ESMTPS
by recvd-…-v6f5g with SMTP
from (unnamed) by geopod-ismtpd-92 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

	Apr 16, 2026 10:30 AM	Great taste! It's meant to be yours!
	Apr 14, 2026 12:30 PM	Stress less, sleep deeper
	Apr 9, 2026 12:30 PM	Stress less, sleep cooler
	Apr 7, 2026 12:30 PM	The science of a better night’s sleep (this email)
	Apr 5, 2026 12:30 PM	Happy Easter from Cool-jams!
	Apr 3, 2026 12:30 PM	Choose your waistband style!
	Apr 2, 2026 12:31 PM	The Easter Sale is on!