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The Official Cannabis collection · sheet 12No 12 · Northern LightsEffects

Effects

Northern Lights effects: what people report

Leafly users most often describe Northern Lights as sleepy, relaxed and hungry, and Leafly, AllBud and Weedmaps all describe strong physical relaxation. Dry mouth, dry eyes and dizziness are the downsides Leafly users report most.1,2,3

This page reports what people and breeders describe. It is not medical advice, and it makes no claim that Northern Lights treats or prevents any condition.

What each source reports

SourceReported effectsReported downsides
Leafly users (3,833 ratings)Sleepy, relaxed, hungry; Leafly’s own description adds euphoria that settles into the body and relaxes the muscles1Dry mouth, dry eyes, dizzy1
AllBudEuphoria, happy, relaxing, sleepy; “an upbeat mix of euphoria and physical relaxation”2Cottonmouth and red eyes2
WeedmapsSays longtime users describe a happy, settled mood, then strong physical relaxation, often with sleepiness3—
Sensi Seeds (breeder)Says users report a heavy, whole-body stone that loosens the muscles and quiets the mind4—
Royal Queen Seeds (seed seller)Balanced, clear, stoned; a strong, couch-lock stone5—
SeedFinderNicely relaxing to immobilizing depending on tolerance; an uplifted head with a warm body stone at lower amounts6—

These are self-reports and marketing descriptions, not clinical findings.

Energizing or sleepy?

Sleepy. “Sleepy” is the effect Leafly users report most, Leafly rates Northern Lights mostly calming, and Weedmaps says longtime users often mention sleepiness.1,3

Crosses that carry the name can feel different: Leafly users describe Sensi Seeds’ 70% sativa Northern Lights #5 × Haze as energetic, focused and talkative, so the full product name matters (see genetics).7

Why two batches can feel different

Potency alone varies widely: one in ten lab-tested batches came in under 13.99% THC and one in ten above 24.96%.8 Leafly’s history says the lineage began to blur once the original plants were selectively bred and backcrossed in the Netherlands, and seed versions today range from Sensi Seeds’ 90% indica line to Royal Queen Seeds’ 100% indica S1 and autoflowering crosses with ruderalis.4,5,9,10

Sources

  1. Leafly, Northern Lights strain information. Accessed Oct 3, 2026.
  2. AllBud, Northern Lights marijuana strain information and reviews. Accessed Oct 3, 2026.
  3. Weedmaps, Northern Lights strain page. Accessed Oct 3, 2026.
  4. Sensi Seeds, Northern Lights regular seeds. Accessed Oct 3, 2026.
  5. Royal Queen Seeds, Northern Light feminized seeds. Accessed Oct 3, 2026.
  6. SeedFinder, Northern Lights (Sensi Seeds). Accessed Oct 3, 2026.
  7. Leafly, Northern Lights #5 x Haze strain information. Accessed Oct 3, 2026.
  8. Cannlytics (CC BY 4.0), cannabis_results: public state lab results (filtered and aggregated by Official Cannabis). Accessed Oct 3, 2026.
  9. Leafly (Bailey Rahn), Strain highlight: Northern Lights, the indica legend up close (2014-05-01). Accessed Oct 3, 2026.
  10. Royal Queen Seeds, Northern Light Auto seeds. Accessed Oct 3, 2026.