Which PAP machine is actually right for you?
Preview text: CPAP, APAP, and BiPAP all work differently
No image available for this email.
- Subject
- Which PAP machine is actually right for you?
- Preview text
- CPAP, APAP, and BiPAP all work differently
- From
- newsletter@
sleepdoctor.com - Brand
- Sleep Doctor
- ESP
- Klaviyo
- Sent
- Mon Apr 13, 2026, 3:30 AM ET
- Sent to
- singularsleep.com, sleepdoctor.com
- Size
- 88 KB
- Images
- 15
- Links
- 29, 11 of them buttons
- Subject length
- 44 characters
Against Sleep Doctor's usual
Sent in the 3 AM hour, which holds 20% of its emails; 23% arrive in the 9 AM hour. The subject is 44 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
- Sleep Doctor <[email protected]>
- Subject
- Which PAP machine is actually right for you?
- Date
- Mon, 13 Apr 2026 07:30:07 +0000 (UTC)
- Message-ID domain
- geopod-ismtpd-71
- Return-Path domain
- email.sleepdoctor.com
- DKIM signature
- d=sleepdoctor.com s=kl2
- List-Unsubscribe
- Present, one-click
Servers it passed through, newest first
- from o1280.shared.klaviyomail.com [167.89.72.22] by our receiving server with ESMTPS
- by recvd-…-j85wj with SMTP
- from (unnamed) by geopod-ismtpd-71 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
Sent just before and after
| Apr 16, 2026 3:30 AM | 10% OFF: Our Spring Flash Sale is Live | |
| Apr 15, 2026 3:30 AM | Reset your rest: Your 3-step guide to better sleep | |
| Apr 14, 2026 3:04 PM | See something you like? | |
| Apr 13, 2026 3:30 AM | Which PAP machine is actually right for you? (this email) | |
| Apr 12, 2026 10:01 AM | Why you’re waking up with stiff muscles | |
| Apr 9, 2026 3:30 AM | Better sleep is already within reach | |
| Apr 8, 2026 3:30 AM | It’s not just your hormones |
More from Sleep Doctor
All Sleep Doctor emailsWe’re there for what comes next
Nov 5, 2026 10:00 AM
Quiet sleepers can have sleep apnea too
Nov 4, 2026 10:00 AM
CPAP, sleep tests, and your insurance
Nov 2, 2026 10:00 AM
Sleep habits that survive the time change
Nov 1, 2026 8:00 AM
Oct 29, 2026 10:00 AM
Oct 28, 2026 10:00 AM
Your Apple Watch can’t see everything
Oct 26, 2026 10:00 AM
Your cozy fall bedroom has a catch
Oct 25, 2026 9:30 AM







