This is the best day to invest in your sleep*
Up to $400 off your Pod purchase
Eight Sleep <[email protected]>
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Eight Sleep promotes a Labor Day Sale with exclusive discounts of up to $400 off select products, including the Pod + Base. The sale offers free shipping and returns, along with a 5-year warranty and a 30-night risk-free trial. Discounts apply automatically at checkout until September 13th.
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Klaviyo See it in the headers
In the HTML
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Across Eight Sleep's email
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The copy
47 words · under a minute to read
Labor Day Sale
Set your side, and leave it
“After four months, I am enamored. Getting into an ever-so-slightly toasty bed (knowing it will cool down come my eventual night sweats) is a dream.”
Try risk-free for 30 nights | Free shipping & returns | 5-year warranty**
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What the headers say
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o377.k.eightsleep.com
· 168.245.98.160
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- Pass signed by k.eightsleep.com
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Pass for eightsleep.com
Policy: reject
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One-click
Meets the Gmail and Yahoo rule for bulk senders.
- Complaints
- No feedback-loop header
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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 w6aSQwswOzCy for <[recipient]>; Mon, 07 Sep 2026 15:02:41 +0000
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- by recvd-746c86d64-nzxpw with SMTP id recvd-746c86d64-nzxpw-1-6A9ED211-31 2026-09-07 15:02:41.091640273 +0000 UTC m=+1112980.325343733
- Received
- from NTg2NDQxMQ (unknown) by geopod-ismtpd-62 (SG) with HTTP id zDmj7r2IQgm9Zth5-HiB7g Mon, 07 Sep 2026 15:02:41.082 +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=Ab5IpK7Y; 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
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- QtJCHb
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- 01M1PJ7B5MVZX3AHTB6BD48WK6
- X-Kmail-Ops
- 01KX3E8K3PGKM7R311RDDHG1NK
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- u001.aq2Nlhw2Zbv3VvpTkixq5wFQvpq+ptqMKDcEwPY+hA/kwbsBPVhtgdNqQlsFOeqH9Ujk50IFtAuaHVxCqCiTbRcaqdY8kY+jdnq5myUjrE3hFl1+ISuAUwGn0tW05H5ZvcrtaBlPKrp0TiWX/gicMFSEEoKJOBomicA/kmKjTB8NDEH66xqHeMOioZUhiSCJd+KXn+oInmSrP58ioVl+aJCG/84Yos20hy6eMxVpg5vbjuDKPhGqVXAyBwrueiUE
- X-SG-ID
- u001.SdBcvi+Evd/bQef8eZF3BiU3Zi1S53GtqGa3TWBmqe75yn5aYrkvkfG+ZGKrHRvqmPGQRlY/SmPVInpaX4NAnNst/Hs4x9Um8+M3U4rmhPpC4UsIpC7SCII3wHuzZj7ztU5q+64tE08UoAMmAvvyHIicWCIOsYcr2VyFfBMVcJMgJlsbgNklpAYgtRr1oVyd+3QUma8YNm2kYljMwKF2dZnvqHacH7yjoZqZeIlkVVoHR4PK5mFz9s7j6Oo4AY7ibMgzokAWdUX9NtwF/VEjnfeHdttLfK2AddyyYITugXMzLkkAbirQznWxcpdAu+8VEuW4CqDYACCurmGjjpC0/X1vVW98aUM/D/ns6rlk22HhqhZqdlvCnkLjrKIpJzXzdIxRJbFPx4eyBHrE84LaEg==
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Message
- Content-Type
- multipart/alternative; boundary=2530893cb85c228a29c4a119c74b11d08ee9dc2892c4d53071ee3159a991
- Date
- Mon, 07 Sep 2026 15:02:41 +0000 (UTC)
- From
- Eight Sleep <[email protected]>
- Mime-Version
- 1.0
- Message-ID
- <zDmj7r2IQgm9Zth5-HiB7g@geopod-ismtpd-62>
- Subject
- This is the best day to invest in your sleep*
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