The number that tells you how you slept*
Inside the Sleep Fitness Score
Eight Sleep <[email protected]>
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Eight Sleep promotes the Sleep Fitness Score, a daily score that calculates sleep stages, time, and consistency. The brand offers a risk-free 30-night trial with free shipping and returns, along with a 5-year warranty. Discounts apply automatically at checkout for select products.
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
44 words · under a minute to read
One number, every morning
The Sleep Fitness Score turns your whole night into one number. Sleep stages, sleep time, consistency, and more, calculated into one daily score automatically.
Inside your score
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
-
o377.k.eightsleep.com
· 168.245.98.160
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 o377.k.eightsleep.com (168.245.98.160) by [receiver] (cloudflare) id oVNQbF11u0ti for <[recipient]>; Fri, 31 Jul 2026 15:01:06 +0000
- Received
- by recvd-cc676d9db-jf8th with SMTP id recvd-cc676d9db-jf8th-1-6A6CB8B2-C1 2026-07-31 15:01:06.235082629 +0000 UTC m=+245351.146756548
- Received
- from NTg2NDQxMQ (unknown) by geopod-ismtpd-70 (SG) with HTTP id viuFQTpVSTSGzQWFBOPIOA Fri, 31 Jul 2026 15:01:06.193 +0000 (UTC)
Authentication
- Received-SPF Authentication result
- pass ([receiver]: domain of [recipient]@send.k.eightsleep.com designates 168.245.98.160 as permitted sender) receiver=[receiver]; client-ip=168.245.98.160; envelope-from="[recipient]@send.k.eightsleep.com"; helo=o377.k.eightsleep.com;
- Authentication-Results Authentication result
- [receiver]; dkim=pass header.d=k.eightsleep.com header.s=s1 header.b=Trinco06; dmarc=pass header.from=eightsleep.com policy.dmarc=reject; spf=none ([receiver]: no SPF records found for [email protected]) smtp.helo=o377.k.eightsleep.com; spf=pass ([receiver]: domain of [recipient]@send.k.eightsleep.com designates 168.245.98.160 as permitted sender) smtp.mailfrom=[recipient]@send.k.eightsleep.com; arc=none smtp.remote-ip=168.245.98.160
Platform
- X-Kmail-Account
- QtJCHb
- X-Kmail-Message
- 01KWYDSYRE450NYGP820B1MB8Q
- X-Kmail-Ops
- 01KX3E8K3PGKM7R311RDDHG1NK
- X-SG-EID
- u001.aq2Nlhw2Zbv3VvpTkixq5wFQvpq+ptqMKDcEwPY+hA/kwbsBPVhtgdNqQlsFOeqH9Ujk50IFtAuaHVxCqCiTbQSl+5iFFRRmG3wx9TFXpaaANFBysCbdTqhyb+XWDFglAUTmbhieNA0cB3Z/ao5lR7KnDIvNY3hsrXg85Nk1zlpZxoplSGaS1Ku7I8st7MxMB4aftaKiYm17idstEC5/0ozB2REqjIzuiCGz5208VW5eWcaCm5tBxpwzlA0QgMEW
- X-SG-ID
- u001.SdBcvi+Evd/bQef8eZF3BiU3Zi1S53GtqGa3TWBmqe75yn5aYrkvkfG+ZGKrHRvqmPGQRlY/SmPVInpaX4NAnNst/Hs4x9Um8+M3U4rmhPpC4UsIpC7SCII3wHuzZj7zEWEoPf3AehSkMsDNo/QVU2GfzS9zKS1BT5VxI4NnFH7smhwCrpETYf/+ZQa/LkxCzPzXReSAiORuYXqqZ4chse+hq5k5ulB4TM4sAtv/BeChYYOKZhD8IffNmVi6th8Es8TQcZLuSPqFyy7BF9u8Tb3VVbpdOu/cymNUKBXy7/gx05WD2Izsznu3jEQSwNfHbpW3TXBTDvWcku0Hfvu6AC2Z78PDVYBwBHD/Atoon+CwqRqEAfH47SDR7mxBBMZr8MfcYPGuKVFA96yF7s0nfQ==
- 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=37bd9d039a55a3b93c26a9b3b446e0f8ee4f19e783a5956b3c6c30a9fb85
- Date
- Fri, 31 Jul 2026 15:01:06 +0000 (UTC)
- From
- Eight Sleep <[email protected]>
- Mime-Version
- 1.0
- Message-ID
- <viuFQTpVSTSGzQWFBOPIOA@geopod-ismtpd-70>
- Subject
- The number that tells you how you slept*
- Reply-To
- [email protected]
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