Cool down your side, not theirs
Rapid Cooling for night sweats
Eight Sleep <[email protected]>
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Eight Sleep promotes a temperature-controlled bed solution, highlighting the benefit of individualized comfort for couples with different preferences. The brand offers a 30-night risk-free trial, free shipping, and a 5-year warranty. Eight Sleep also provides an email-exclusive offer with automatic discounts at checkout.
What the raw message shows
From the headers
- Sent with
-
Klaviyo See it in the headers
In the HTML
- Built with
- Animated GIFs, Dark-mode styles
Across Eight Sleep's email
- Sends
- About 6 a week
- DMARC
-
Enforced, reject
Mail failing authentication is refused.
The copy
33 words · under a minute to read
in their own words
"I like a warmer bed while my wife likes a cooler bed."
See how it works
Try risk-free for 30 nights | Free shipping & returns | 5-year warranty**
The words as text: what a screen reader can follow, and all there is when images don't load.
What the headers say
Read from the message's own headers, as it arrived.
- Came from
-
o376.k.eightsleep.com
· 192.254.113.62
Klaviyo's sending servers
- SPF
- Pass for send.k.eightsleep.com
- DKIM
-
- Pass signed by k.eightsleep.com
- DMARC
-
Pass for eightsleep.com
Policy: reject
- Unsubscribe
-
One-click
Meets the Gmail and Yahoo rule for bulk senders.
- Complaints
- No feedback-loop header
Show all 21 headers Hide the headers
As received, minus the delivery side: the archive's own addresses show as [recipient], its mail servers as [receiver], signatures are left out and unsubscribe links trimmed to their host.
Route
- Received
- from o376.k.eightsleep.com (192.254.113.62) by [receiver] (cloudflare) id TSCkk0hXQ3WA for <[recipient]>; Tue, 20 Oct 2026 15:01:08 +0000
- Received
- by recvd-5dd7ccd7b6-bvrdz with SMTP id recvd-5dd7ccd7b6-bvrdz-1-6AD78233-15F 2026-10-20 15:01:07.807050095 +0000 UTC m=+1807202.914218995
- Received
- from NTg2NDQxMQ (unknown) by geopod-ismtpd-130 (SG) with HTTP id en2jkevZTWa5TTTEzMDQZQ Tue, 20 Oct 2026 15:01:07.776 +0000 (UTC)
Authentication
- Received-SPF Authentication result
- pass ([receiver]: domain of [recipient]@send.k.eightsleep.com designates 192.254.113.62 as permitted sender) receiver=[receiver]; client-ip=192.254.113.62; envelope-from="[recipient]@send.k.eightsleep.com"; helo=o376.k.eightsleep.com;
- Authentication-Results Authentication result
- [receiver]; dkim=pass header.d=k.eightsleep.com header.s=s1 header.b=kKTCMMjd; dmarc=pass header.from=eightsleep.com policy.dmarc=reject; spf=none ([receiver]: no SPF records found for [email protected]) smtp.helo=o376.k.eightsleep.com; spf=pass ([receiver]: domain of [recipient]@send.k.eightsleep.com designates 192.254.113.62 as permitted sender) smtp.mailfrom=[recipient]@send.k.eightsleep.com; arc=none smtp.remote-ip=192.254.113.62
Platform
- X-Kmail-Account
- QtJCHb
- X-Kmail-Message
- 01M50HEP3YDVRZQ6T4C18GXFX2
- X-Kmail-Ops
- 01KX3E8K3PGKM7R311RDDHG1NK
- X-SG-EID
- u001.aq2Nlhw2Zbv3VvpTkixq5wFQvpq+ptqMKDcEwPY+hA/kwbsBPVhtgdNqQlsFOeqH9Ujk50IFtAuaHVxCqCiTbQeDRI12A6gKbALsYH+tT3kJsvwdBPuCkHygkb16VrCAMHuk6QOgVen6tvC2g9s+AOFkp6vxl+DjxREMvhz69nVkSEyi1JVyTv0eO+t9WXL/Fe6hAYM3kZzkC+Rf+/SajXCrpUL9vukAm7ErKIU8RBUpcVZi/6EISbAcDOwcbEWf
- X-SG-ID
- u001.SdBcvi+Evd/bQef8eZF3BiU3Zi1S53GtqGa3TWBmqe75yn5aYrkvkfG+ZGKrHRvqmPGQRlY/SmPVInpaX4NAnNst/Hs4x9Um8+M3U4rmhPpC4UsIpC7SCII3wHuzZj7zlNJIESjaQKjaGe9OfzL1We+6/PA1kH/AkcrGCcFBTNZoqSnI0kZQfVwFT3G2zhQ/GfS65jfHSeC65LNYzddqYu6isc4/ljz55DPEEFDUr9Tu9abIJYlKnbuIzK1cpF79egfSW0Sc98EqCmtTY+9uXPXFUrEPdxu8n5Y0KuGNejeVAuhF41VQAXD8mdl3+S3NhpN4OR1YDModj/ba0zU6kXrthDzwouZl5svmQ99lx9uF0pNbNcLVOPRJUraIMXmw4K/nePuedJ2fiUfbKyQbVVOy8TxDAG+1mZk3rpJKBfY=
- X-Entity-ID
- u001.W4HSKSd9xIhnzUA6hOZYcg==
Unsubscribe and feedback
- List-Unsubscribe
- <https://manage.kmail-lists.com/…>
- List-Unsubscribe-Post
- List-Unsubscribe=One-Click
- X-Report-Abuse Identifies Klaviyo
- Please report any spam or abuse to: [email protected]
Message
- Content-Type
- multipart/alternative; boundary=fa4320acf71c5cc73eb94c368ead3e3e9d58ea60080c8ff9c3cffb188818
- Date
- Tue, 20 Oct 2026 15:01:07 +0000 (UTC)
- From
- Eight Sleep <[email protected]>
- Mime-Version
- 1.0
- Message-ID
- <en2jkevZTWa5TTTEzMDQZQ@geopod-ismtpd-130>
- Subject
- Cool down your side, not theirs
- Reply-To
- [email protected]
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