By Roy Newlan, founder Last updated 18/08/2026
"I sleep badly" covers two very different nights. One person lies awake for an hour with a busy head. Another is out in five minutes and wide awake at 3am. Both call it bad sleep, and both often reach for the same fix. That's the mistake this page is about.
Why is falling asleep different from staying asleep?
Because they run on different mechanisms. Getting to sleep is about switching off arousal, convincing a system still in day mode that the day is over, while staying asleep is about what happens between sleep cycles in the back half of the night, when you surface briefly and either drop back down or don't.
Sleep runs in cycles of roughly 90 minutes. At the end of each one you rise close to the surface before starting the next. Falling asleep is the entry ramp. Staying asleep is clearing those shallow points hour after hour. Different stages, different things that go wrong, different fixes.
The two problems side by side
| Trouble falling asleep | Trouble staying asleep | |
|---|---|---|
| Typical pattern | Lying awake at 10.30pm, head still running | Out in minutes, awake at 2 or 3am |
| What's really going on | Arousal hasn't switched off | Surfacing between cycles and not dropping back |
| Common drivers | Screens in bed, no end to the workday, late caffeine, a racing list | Alcohol wearing off, a warm room, dehydration, blood sugar dips, the early cortisol ramp |
| What helps | A repeatable wind-down, lights down, a shutdown time, writing the loops down | Cooler room, last drink earlier, a proper dinner, hydration before bed rather than at lights-out |
| Read more | Tired but wired | Waking up at 3am |
If your problem is the front half
That's tired-but-wired territory. The body is exhausted, the head hasn't clocked off, and nothing has told your nervous system the day is over. The fix is not trying harder to sleep. It's giving the day an actual ending: a shutdown time, low light, something boring for your hands, a notepad for the open loops. The full routine is in the wind-down guide and the deeper dive is here.
If your problem is the back half
You don't have a falling-asleep problem, so a wind-down alone won't finish the job. The 3am wake-up is about the transitions between cycles. Alcohol rebounds as it wears off. A warm room stops your core temperature dropping. Going to bed behind on fluid, or with a long gap since dinner, gives the body reasons to surface. Each of those has a boring fix, and they stack. The full list is in the 3am piece.
Plenty of people have both
The two problems aren't exclusive. A stressful stretch can hand you a racing head at 10pm and a 3am wake-up in the same week. That's fine. The fixes don't conflict, and sorting the front half often takes pressure off the back half too, because a consistent bedtime is one of the things that steadies the cycles.
Where Settl fits
We built Settl to cover both halves in one scoop. L-theanine and glycine work the front of the night, the settling and the wind-down. Inositol works the back, the quiet stretch after you're already asleep. The electrolyte base handles overnight hydration, one of the back-half drivers most people miss. No melatonin, so there's no fog waiting for you at 6am. Every active and its dose is on the ingredients page.
It's one scoop in cold water before bed, and it slots into the wind-down rather than replacing it.
Work out which half of the night is yours. Then fix that end, not the other one.
Cheers, Roy