Eight Sleep subject lines
106 subject lines averaging 36 characters.
| Picture | Sent (Eastern) | Subject | Characters | Preview text | |
|---|---|---|---|---|---|
| May 7, 2026 11:03 AM | The gift she'll use forever* | 28 | Not flowers. Not a candle. Every night. | May 7, 2026 11:03 AM · 28 characters. Not flowers. Not a candle. Every night. | |
| May 5, 2026 4:30 PM | NEW: Pregnancy mode. Better sleep from pregnancy to postpartum.* | 64 | Pregnancy changes everything. Now your sleep can keep up. | May 5, 2026 4:30 PM · 64 characters. Pregnancy changes everything. Now your sleep can keep up. | |
| May 4, 2026 11:00 AM | Is 7 hours actually enough?* | 28 | Sleep duration is the easy part | May 4, 2026 11:00 AM · 28 characters. Sleep duration is the easy part | |
| May 2, 2026 11:00 AM | Up to $300 off for Mom* | 23 | The Mother's Day gift she'll use every night | May 2, 2026 11:00 AM · 23 characters. The Mother's Day gift she'll use every night | |
| May 1, 2026 11:02 AM | How Formula One™ drivers sleep between races* | 47 | Recovery isn't optional at 200mph | May 1, 2026 11:02 AM · 47 characters. Recovery isn't optional at 200mph | |
| Apr 23, 2026 11:00 AM | Introducing Autopilot 4.0 | 25 | It predicts your night and adjusts your Pod before you get into bed. | Apr 23, 2026 11:00 AM · 25 characters. It predicts your night and adjusts your Pod before you get into bed. |
Based on 106 emails received from Apr 23 to Nov 4, 2026. Times in US Eastern. How we collect