Sleep Doctor emails
Sleep Doctor sends about 6 emails a week through Klaviyo, most often on Wednesday around 9 AM Eastern.
- ESP
- Klaviyo
- Emails a week
- about 6
- Busiest send time
- Wednesdays at 9am ET
- Last sent
- Yesterday · Oct 29
- Tracked since
- Mar 2026
- Emails collected
- 193
- Website popularity
- Top 500,000 sites
Recent emails
Oct 29, 2026 10:00 AM
Your partner snores. We know.
Oct 28, 2026 10:00 AM
Better sleep, stronger heart
Oct 26, 2026 10:00 AM
Your Apple Watch can’t see everything
Oct 25, 2026 9:30 AM
Your cozy fall bedroom has a catch
Oct 22, 2026 9:30 AM
Firm vs. soft for back pain: it depends
Oct 21, 2026 9:30 AM
Home test or lab study: which fits you?
Recent subject lines
All subject linesSubject lines average 37 characters. Each one opens the email it came from.
| Picture | Sent (Eastern) | Subject | Preview text |
|---|---|---|---|
| Oct 29, 2026 10:00 AM | Your partner snores. We know. | Your partner snores. We know. 96 The earplug Dr. Breus wears to bed | |
| Oct 28, 2026 10:00 AM | Better sleep, stronger heart | Better sleep, stronger heart 96 See how sleep apnea affects your heart, brain, and blood… | |
| Oct 26, 2026 10:00 AM | Your Apple Watch can’t see everything | Your Apple Watch can’t see everything 96 Trackers spot patterns, but a sleep test gives… | |
| Oct 25, 2026 9:30 AM | Your cozy fall bedroom has a catch | Your cozy fall bedroom has a catch 96 The heat, the heavy blanket, the dry air. Here’s the… | |
| Oct 22, 2026 9:30 AM | Firm vs. soft for back pain: it depends | Firm vs. soft for back pain: it depends 96 Your sleep position and body weight matter more… | |
| Oct 21, 2026 9:30 AM | Home test or lab study: which fits you? | Home test or lab study: which fits you? 96 A quick side-by-side on setup, cost, and… | |
| Oct 19, 2026 9:30 AM | Why you wake up earlier after 60 | Why you wake up earlier after 60 96 A sleep expert explains what changes with age, plus… | |
| Oct 18, 2026 9:00 AM | Late-night snacking, minus the guilt | Late-night snacking, minus the guilt 96 The foods that may help you sleep, and what to try… |
Archive
View full archiveOctober 2026 18 emails
View allWhy you wake up earlier after 60
Oct 19, 2026 9:30 AM
Late-night snacking, minus the guilt
Oct 18, 2026 9:00 AM
Why your CPAP mask keeps leaking
Oct 15, 2026 9:30 AM
What brain fog and sleep apnea share
Oct 14, 2026 9:30 AM
5 signs your fatigue isn't just fatigue
Oct 12, 2026 9:30 AM
Your top sleep questions, answered
Oct 11, 2026 9:00 AM
When Sleep Doctor sends
23% of its emails arrive in the 9 AM hour, with a second, smaller wave around 3 AM. Wednesdays are the busiest day.
| 12a | 1a | 2a | 3a | 4a | 5a | 6a | 7a | 8a | 9a | 10a | 11a | 12p | 1p | 2p | 3p | 4p | 5p | 6p | 7p | 8p | 9p | 10p | 11p | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mon | 0 | 0 | 0 | 10 | 1 | 1 | 1 | 0 | 0 | 8 | 3 | 1 | 7 | 2 | 1 | 3 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 |
| Tue | 0 | 2 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 1 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Wed | 0 | 0 | 0 | 11 | 0 | 1 | 0 | 0 | 0 | 11 | 2 | 1 | 7 | 3 | 2 | 1 | 1 | 0 | 6 | 2 | 0 | 0 | 0 | 0 |
| Thu | 0 | 0 | 0 | 6 | 1 | 0 | 0 | 0 | 0 | 10 | 2 | 0 | 10 | 2 | 1 | 1 | 1 | 0 | 2 | 0 | 1 | 0 | 0 | 0 |
| Fri | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 1 |
| Sat | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
| Sun | 0 | 0 | 0 | 10 | 0 | 1 | 0 | 0 | 0 | 15 | 2 | 1 | 5 | 2 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 1 |
| Mon | Tue | Wed | Thu | Fri | Sat | Sun | |
|---|---|---|---|---|---|---|---|
| 12a | 0 | 0 | 0 | 0 | 1 | 0 | 0 |
| 1a | 0 | 2 | 0 | 0 | 0 | 0 | 0 |
| 2a | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 3a | 10 | 1 | 11 | 6 | 1 | 0 | 10 |
| 4a | 1 | 1 | 0 | 1 | 0 | 0 | 0 |
| 5a | 1 | 1 | 1 | 0 | 0 | 0 | 1 |
| 6a | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| 7a | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 8a | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 9a | 8 | 0 | 11 | 10 | 0 | 1 | 15 |
| 10a | 3 | 0 | 2 | 2 | 2 | 0 | 2 |
| 11a | 1 | 0 | 1 | 0 | 2 | 0 | 1 |
| 12p | 7 | 2 | 7 | 10 | 1 | 1 | 5 |
| 1p | 2 | 1 | 3 | 2 | 1 | 1 | 2 |
| 2p | 1 | 0 | 2 | 1 | 1 | 2 | 0 |
| 3p | 3 | 1 | 1 | 1 | 1 | 0 | 0 |
| 4p | 1 | 1 | 1 | 1 | 0 | 0 | 1 |
| 5p | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 6p | 0 | 0 | 6 | 2 | 1 | 1 | 1 |
| 7p | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
| 8p | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
| 9p | 1 | 0 | 0 | 0 | 1 | 0 | 0 |
| 10p | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 11p | 0 | 0 | 0 | 0 | 1 | 0 | 1 |
FewerMore(busiest cell: 15 emails)
Based on 193 emails received from Mar 16 to Oct 29, 2026. Times in US Eastern. How we collect · When all brands send
How often Sleep Doctor sends
Complete months have run between 19 and 36 emails.
- Busiest month
- Aug 2026, 36
- Quietest month
- Apr 2026, 19
- Busiest day
- Wednesday, 48
- Quietest day
- Saturday, 6
About Sleep Doctor
- ESP
- Klaviyo
- Website popularity (CrUX)
- Top 500,000 sites
- Tracked since
- Mar 2026
- Emails collected
- 193
- Emails a week
- about 6
- Last sent
- Oct 29, 2026
- Sends from
- newsletter@
sleepdoctor.com - Subject length
- 37 characters avg
Counts include automated emails such as a welcome series. Website popularity is the bracket the brand's site falls in by visits, from Google's public Chrome UX Report (CrUX).
Similar sending frequency
| Latest email | Brand | ESP | Website popularity | Emails a week | Busiest day | Last sent | |
|---|---|---|---|---|---|---|---|
 Altangle Toolsaltangletools.com | Klaviyo | about 6 | Wednesday | Oct 17, 2026 | Klaviyo · about 6 a week · busiest Wednesday · last sent Oct 17, 2026 | ||
| Afroylaafroyla.com · Top 500,000 sites | Klaviyo | Top 500,000 sites | about 6 | Friday | Oct 30, 2026 | Klaviyo · about 6 a week · busiest Friday · last sent Oct 30, 2026 | |
| Alphaletealphaleteathletics.com · Top 500,000 sites | Klaviyo | Top 500,000 sites | about 6 | Saturday | Oct 29, 2026 | Klaviyo · about 6 a week · busiest Saturday · last sent Oct 29, 2026 |
