What is sleep good for? Everything.
Preview text: Smarter, faster, steadier, more patient. Doc Parsley on why sleep is the multiplier under…

Using this email in an article? Credit: Doc Parsley email via They Sent It, with a link to this page. Full-size image
- Subject
- What is sleep good for? Everything.
- Preview text
- Smarter, faster, steadier, more patient. Doc Parsley on why sleep is the multiplier under…
- From
- customerservice@
docparsley.com - Brand
- Doc Parsley
- ESP
- Klaviyo
- Sent
- Mon Sep 21, 2026, 8:12 AM ET
- Sent to
- dev.docparsley.com
- Size
- 60 KB
- Images
- 8
- Links
- 17, 9 of them buttons
- Subject length
- 35 characters
Against Doc Parsley's usual
Sent in its busiest hour, 8 AM, which holds 50% of its emails. The subject is 35 characters; its average is 44.
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
- Doc Parsley <[email protected]>
- Subject
- What is sleep good for? Everything.
- Date
- Mon, 21 Sep 2026 12:12:04 +0000 (UTC)
- Message-ID domain
- geopod-ismtpd-94
- Return-Path domain
- klaviyo.docparsley.com
- DKIM signature
- d=docparsley.com s=kl2
- List-Unsubscribe
- Present, one-click
Servers it passed through, newest first
- by recvd-…-thlkm with SMTP
- from (unnamed) by geopod-ismtpd-94 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
| Oct 13, 2026 11:32 PM | Here’s your Stressless Sleep Guide! | |
| Sep 25, 2026 8:16 AM | Every man who walked into my office was on the same drug | |
| Sep 23, 2026 7:55 AM | She hadn't slept 4 hours a night in 20 years | |
| Sep 21, 2026 8:12 AM | What is sleep good for? Everything. (this email) | |
| Sep 20, 2026 1:20 AM | Final Call: Act now before it's gone! | |
| Sep 19, 2026 1:18 AM | 15% off, first order or your next one | |
| Sep 18, 2026 9:30 PM | The two cues that decide how you sleep all weekend |
More from Doc Parsley
All Doc Parsley emailsFinal Call: Act now before it's gone!
Nov 7, 2026 2:23 AM
15% off, first order or your next one
Nov 6, 2026 2:22 AM
Final Call: Act now before it's gone!
Nov 5, 2026 12:16 PM
15% off, first order or your next one
Nov 4, 2026 12:13 PM
Don't miss out on this Special Offer!
Oct 15, 2026 3:02 AM
Final Call: Act now before it's gone!
Oct 15, 2026 2:07 AM
15% off, first order or your next one
Oct 14, 2026 2:05 AM
Here’s your Stressless Sleep Guide!
Oct 13, 2026 11:32 PM







