How Manta Sleep does email marketing
Health & Fitness37 campaigns · mantasleep.com · RSS
Whatever stops you sleeping, its days are numbered. Join 2+ million people taking control of their sleep with Manta masks and accessories.
Manta Sleep sends about 3 campaigns a week, most often on Monday and Friday around 9am US Eastern. Its median subject line runs 27 characters, and 5% carry an emoji.
Measured from 37 campaigns sent Jul 14 to Oct 7, 2026. Each figure is set against the typical Health & Fitness brand: the median of 17 Health & Fitness brands in the archive with at least 12 campaigns.
- Campaigns a week
- 3.0 25% less than typical (4.0)
- Median subject length
- 27chars 18% less than typical (33 chars)
- Median words
- 72 63% less than typical (193)
- Discount in the subject
- 5% 7 points below typical (12%)
- Copyable promo code
- 5% About the same as typical (3%)
Latest Manta Sleep emails
All 37 campaignsWhen Manta Sleep sends
Monday and Friday are the busiest days, within two points or one email of each other (up to 31% of sends). 9am is the most common hour (up to 25% of sends). Across 36 scheduled campaigns; welcome, cart and order emails are left out because they go out when a subscriber acts. Times are US Eastern.
Day of week
Show days as a tableHide the days table
| Day | Campaigns | Share |
|---|---|---|
| Monday | 11 | 31% |
| Tuesday | 3 | 8% |
| Wednesday | 9 | 25% |
| Thursday | 0 | 0% |
| Friday | 11 | 31% |
| Saturday | 1 | 3% |
| Sunday | 1 | 3% |
Hour of day (US Eastern)
Show hours as a tableHide the hours table
| Hour (US Eastern) | Campaigns | Share |
|---|---|---|
| 12am | 0 | 0% |
| 1am | 0 | 0% |
| 2am | 1 | 3% |
| 3am | 0 | 0% |
| 4am | 0 | 0% |
| 5am | 0 | 0% |
| 6am | 1 | 3% |
| 7am | 1 | 3% |
| 8am | 3 | 8% |
| 9am | 9 | 25% |
| 10am | 7 | 19% |
| 11am | 4 | 11% |
| 12pm | 0 | 0% |
| 1pm | 0 | 0% |
| 2pm | 0 | 0% |
| 3pm | 1 | 3% |
| 4pm | 0 | 0% |
| 5pm | 0 | 0% |
| 6pm | 1 | 3% |
| 7pm | 3 | 8% |
| 8pm | 0 | 0% |
| 9pm | 5 | 14% |
| 10pm | 0 | 0% |
| 11pm | 0 | 0% |
Manta Sleep subject lines
The median runs 27 characters across 5 words, against 33 for the typical Health & Fitness brand. The words Manta Sleep reaches for most: “new” and “off”.
- “New Manta White Noise Machine” 29 chars · Oct 7
- “Sleeping worse lately?” 22 chars · Oct 4
- “New season. New launch. 👀” 25 chars · Oct 2
- “The Everything Email” 20 chars · Sep 30
- “Have you heard?” 15 chars · Sep 29
What Manta Sleep sends
Mostly Product Showcase, at 54% of campaigns. Welcome, cart and order emails were set off by our own signup, so they do not count toward that.
The stack behind the sends
Manta Sleep sends with Klaviyo and publishes a DMARC none policy.
Sends with
Domain authentication
Failures are monitored but still delivered, so the policy is not enforced yet.
SPF also authorizes Google Workspace to send as this domain, which usually means other tools sit alongside Klaviyo.
The median Manta Sleep campaign carries 11 images.
Compare Manta Sleep with Mars Men and Hume
See how Mars Men and Hume send, same industry and measured the same way. Or compare with every Health & Fitness brand and the whole archive.
How this is measured
Every figure comes from real Manta Sleep emails captured in Inbox Archive, not from a survey or a vendor report. Medians and the campaign mix appear once a brand has 12 campaigns archived, and the day and time charts once 12 of them are scheduled sends. “Typical Health & Fitness brand” is the median across the 17 Health & Fitness brands that clear the same bar, each counted once however much it sends. Campaign types are sorted automatically. Discounts are read from subject lines, and a copyable code counts only when one appears in the email, so offers applied at checkout are missed.