Ashwagandha: morning or night?

The most-Googled ashwagandha question has a clear answer once you know what you're trying to fix. It comes down to one hormone: cortisol.

Quick answer

For sleep and stress that peaks at night — take it in the evening. For daytime calm-focus, morning works. Ashwagandha isn't a sedative; it's an adaptogen that regulates your stress response over weeks, so the bigger lever is taking it consistently, every day, rather than obsessing over the exact hour.

First, what ashwagandha actually does

Ashwagandha (Withania somnifera) is an adaptogen — a herb that helps your body regulate its stress response rather than stimulating or sedating it directly. Its active compounds are withanolides, and its best-evidenced effect is lowering cortisol, your primary stress hormone. That single mechanism is why the same herb shows up in both "calm focus" and "better sleep" claims: cortisol touches both.

Why evening wins for most people

Cortisol is supposed to follow a curve — high in the morning to get you going, tapering to its lowest at bedtime. For chronically stressed professionals, that curve flattens or breaks: cortisol stays elevated into the night. The result is the familiar "tired but wired" state — exhausted body, mind still running through tomorrow's emails at 11 p.m.

KSM-66 at 300–600mg is clinically shown to reduce cortisol, and multiple trials report improved sleep quality and reduced anxiety scores. Taken in the evening, it supports the natural cortisol drop your body is failing to make on its own — which is exactly why a sleep formula puts it at night.

When morning makes sense

If your problem is daytime — an anxious, scattered, always-on feeling from 10 a.m. to 6 p.m. — a morning dose can smooth that stress response through the workday. Some people are also mildly energised by it and prefer not to take it too close to bed. There's no wrong answer; match the dose to the window where your stress actually shows up.

The dose that's studied

300mg daily is a well-studied, effective dose — you don't need mega-doses. Most trials run 8 weeks, and benefits build gradually, so judge it over a month, not a night.

Why the extract matters — KSM-66 vs "ashwagandha"

Not all ashwagandha is equal. KSM-66 is a full-spectrum root extract standardised to a high withanolide content, and it's the most-studied form on the market (backed by 24+ human trials). Cheaper products often use leaf powder or unstandardised extract — sometimes buried inside a "proprietary blend" so you can't see how much you're actually getting. If a label won't tell you the extract name and the milligrams, assume it's under-dosed. Root, standardised, and a stated dose are the three things to check.

Is ashwagandha safe to take every day?

For most healthy adults, yes — trials commonly dose it daily for 8–12 weeks with a good safety profile. Some people take short breaks (a "cycle") though the evidence for needing to is thin. It's not for everyone: those who are pregnant or breastfeeding, or who have thyroid conditions or autoimmune disease, should check with a doctor first, since ashwagandha can influence thyroid hormones and immune activity. Mild, uncommon side effects include drowsiness or stomach upset.

It works best in a stack

Ashwagandha handles the mental side of poor sleep — the stressed, racing mind. But a busy brain isn't the only barrier. Pairing it with magnesium bisglycinate (the mineral and muscle-relaxation side) and glycine 3g (faster sleep onset, sharper mornings) covers stress, body and mineral gaps together. That combination — not any single hero ingredient — is what the strongest sleep evidence supports.

How SILT does it

SILT™ Night uses KSM-66 300mg in an evening ritual — alongside 250mg elemental magnesium bisglycinate, glycine 3g and chamomile, with zero melatonin — because night is when cortisol needs to fall. Every milligram is printed on the pack with an NABL lab report per batch: no leaf-powder shortcuts, no proprietary blend. See the magnesium breakdown or the full formula.