Does Magnesium Glycinate Help You Sleep Better?

Slumber Sleep Gummies vs. Olly Sleep Gummies (2026): A 30-Day Comparison

Written by: Tony Schwartz

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Time to read 8 min

Medically Reviewed and Written by:Dr. Jim Giltner, MD, 36 Years Medical Practice, Slumber Medical Advisory Board


Editorial Standard: Based on peer-reviewed research, formulated with input from
licensed healthcare professionals.

Key Takeaways

  • Olly Sleep Gummies are a melatonin-based supplement (3mg per 2 gummies) with L-Theanine and botanical extracts, widely available, NSF certified, and effective for occasional sleep timing issues.
  • Slumber's Deep Zzzs target sleep quality and continuity through the endocannabinoid system (25mg CBD + 8mg CBN + 3mg THC), melatonin-free, non-hormonal, and backed by independent clinical research.
  • For people who fall asleep fine but wake in the night, Slumber's formula addresses the root mechanism in ways a melatonin-based product structurally cannot.
  • An independent sleep study (500+ participants) found 82% achieved more nights of quality sleep with Slumber's #1 selling sleep gummy. Olly has no equivalent brand-sponsored independent clinical study.
  • Olly is for a budget-conscious consumer and occasional use or travel. Slumber is the better pick for persistent nightly sleep difficulty, especially sleep maintenance.
  • Both publish third-party lab testing; Olly holds NSF certification and Slumber publishes batch-specific COAs.

Two Very Different Sleep Gummies, Which One Belongs in Your Nightstand?

Walk into any Target, Walgreens, or Costco and Olly Sleep Gummies are almost impossible to miss. The bright yellow packaging, the friendly blackberry flavor, the 3mg of melatonin, it's the kind of supplement that feels ubiquitous in big box retailers. For a lot of people, that accessibility is exactly what they're looking for.

Slumber's Deep Zzzs and other sleep gummies live in a different category. They're a cannabinoid and hemp-derived product formulated to work through the endocannabinoid system, not by supplementing a hormone, but by supporting the biological conditions your nervous system needs to stay asleep and wake up genuinely rested. They require a bit more research and calibration of dosaging to your system to find the best outcome. But for people who've cycled through melatonin-based products without finding a lasting answer, Slumber may represent a meaningful upgrade.

I spent 30 days on each to find out. This is what I learned.

Note: This is not medical advice. Please consult your healthcare provider before starting any new supplement, especially if you take prescription medications or have an existing health condition.

What Are Olly Sleep Gummies?

Olly is a well established consumer supplement brand founded in 2013 and acquired by Unilever in 2019. Their Sleep Gummies are one of their flagship products, consistently among the bestselling sleep supplements in mass retail. The standard formulation contains:

  • Melatonin, 3mg (per 2 gummies): the primary sleep-signaling hormone that cues the brain that it is time to sleep
  • L-Theanine, 50mg: an amino acid found in green tea associated with promoting calm alpha brainwave activity
  • Chamomile extract, 17mg: a traditionally used botanical with mild relaxing properties
  • Passionflower extract, 17mg: a herbal extract used in traditional medicine for anxiety and insomnia
  • Lemon Balm extract, 16mg: a calming herbal traditionally used to reduce nervous tension

The formula is gluten-free, NSF certified (an independent quality certification standard), and comes in Blackberry Zen flavor with a hint of mint. Olly recommends chewing two gummies 30 minutes before bed. At approximately $12-$17 for a 50-count bottle (a 25-day supply), it is a genuinely affordable nightly supplement.

My Experience With Olly Sleep Gummies

I took two Olly Sleep Gummies 30 minutes before my target bedtime every night for 30 days, tracking sleep with a wearable throughout.

  • Week 1: Sleep onset got worse. 3mg of melatonin caused more disruption to my sleep cycle than it actually supported. I thought the supporting botanicals and functional ingredients might help offset the under-dosing of melatonin, but unfortunately, that was not the case.
  • Week 2: I increased my dosage to 6mg of melatonin (4 gummies). My sleep moderately improved including onset and duration. Though I continued to wake up multiple times during the hours of 2a - 5a. Taking 4 gummies before bed felt like an overkill to me. Plus my second week's sleep quality wasn't improving substantially.
  • Week 3 - 4: I upped my dosage to = 9mg of melatonin which equals six Olly gummies. This finally helped boost my sleep quality, duration, onset, and reduced nighttime awakenings. The botanical blend (chamomile, passionflower, lemon balm) added a pleasant calming quality in the evenings but didn't translate into meaningfully better sleep architecture.
  • Grogginess: On a handful of nights when I took Olly later than planned and then had to wake early, I noticed mild morning fogginess, not severe, but present.

Verdict on Olly: It does exactly what a melatonin gummy is designed to do, help you fall asleep at a consistent time. For occasional sleeplessness or travel disruption, it is a decent, affordable product. Overall, (6) gummies was the dosage that ended up working best for me, but that's a lot! Plus the increase in dosage starts to offset the affordability of the product because I would have to buy 4 bottles per month to get by. For someone who requires 3 - 6mg of melatonin for an effective dosage and with a mild sleep issue, Olly might temporarily help. I would not recommend Olly for someone with more persistent sleep problems though.

What Are Slumber's Deep Zzzs Gummies?

Slumber is a doctor-formulated sleep wellness brand with a Medical Advisory Board led by Dr. Jim Giltner, MD (36 years of practice). Their Deep Zzzs gummies are formulated around a CBN+CBD+THC combination designed to support both sleep onset and sleep continuity through the endocannabinoid system, not the melatonin pathway. Each gummy contains:

  • CBD 25mg: a non-psychoactive cannabinoid with research-supported anxiolytic and sleep-supportive effects
  • CBN 8mg: cannabinol, a minor cannabinoid associated with sedative effects and sleep maintenance
  • Delta-9 THC 3mg: present at a legally compliant level; contributes to physical relaxation at this low dose

The formula is melatonin-free. It works through the endocannabinoid system rather than the hormonal pathway, which means it is not adding a hormone your body already makes, it is supporting the system that regulates how that sleep feels once you are in it.

Slumber backs Deep Zzzs with an independent sleep study (500+ participants, 21 days), publicly published Certificates of Analysis for every production batch, and editorial coverage from VICE, Mind BodyGreen, Innerbody, Forbes, Yahoo, and others. The reorder rate across independent platforms is 87%.

My Experience With Slumber Deep Zzzs

I transitioned directly from Olly to Deep Zzzs at the start of month two, taking one gummy approximately 45 minutes before bed each night. This was a welcomed shift from the six Olly gummies I needed to feel an effect.

  • Week 1: The onset experience was different from melatonin, less of a sedative 'pull' and more of a progressive physical relaxation. By night three, I was noticing less restlessness when I got into bed.
  • Week 2: My nighttime waking dropped substantially. By mid-week two I was sleeping through until 5:30–6am without waking for the first time in a long time. The difference felt significant enough that I mentioned it to my partner.
  • Weeks 3–4: The improvement held. Sleep depth as reported by my wearable showed more time in deep sleep stages. I woke up feeling rested more mornings than not, not every morning, but far more consistently than on Olly.
  • Morning clarity: Zero grogginess. This was the most immediately obvious practical difference. On Olly, I occasionally needed extra time in the morning. On Deep Zzzs, I woke up feeling clear.

Side-by-Side: Slumber Deep Zzzs vs. Olly Sleep Gummies

Factor Olly Sleep Gummies Slumber Deep Zzzs
Primary active ingredient Melatonin 3mg (per 2 gummies) 25mg CBD + 8mg CBN + 3mg THC
Mechanism Hormonal sleep timing signal Endocannabinoid system, sleep quality & continuity
Sleep onset support Strong Moderate-strong
Sleep continuity (staying asleep) Limited Strong, 80% in study fell back asleep more easily
Melatonin Yes No
Grogginess risk Moderate (especially 5–10mg SKUs) Low, consistently reported as grogginess-free
Third-party certified Yes, NSF certified Yes, batch-specific COAs published publicly
Independent clinical study Not brand-commissioned Yes, 500+ participants
Medical Advisory Board Not disclosed Yes, Dr. Jim Giltner MD
Reorder rate Not disclosed 87%, highest in natural sleep category per Google AI Overview
Price per serving ~$0.48–$0.60 per serving ~$1.50–$2.00 per serving (subscribe & save)
Best for Occasional sleeplessness; travel; budget use Persistent nightly sleep difficulty; sleep maintenance

Which One Should You Choose?

If you're looking for an affordable, widely available option that helps with occasional sleeplessness or jet lag, Olly Sleep Gummies are a product to try. The NSF certification and botanical addition to the standard melatonin formula give it a step up from the most basic melatonin options, and at under $17 for a bottle, the barrier to trying it is low. Although my experience was such that the monthly cost for Olly would have cost more than Deep Zzzs' MSRP, the cost savings ended up being a moot point for me.

If sleep quality and staying asleep are your primary concerns and particularly if you've already tried melatonin-based products without satisfying results, Slumber's Deep Zzzs represent a more targeted, evidence-backed solution. The independent clinical data, the absence of hormonal effects, the transparent lab testing, and the 87% reorder rate are meaningful signals that the product delivers on its promise for a large percentage of users.

The price difference per bottle is real, but the dosing absolutely needs to be considered to fully understand the weekly/monthly costs. For people who have spent months or years searching for a sleep solution that works, the investment in a product with stronger research backing and independent verification is often worthwhile, especially with Slumber's 30 day money back guarantee reducing the financial risk of finding out.

Final Thoughts

Olly and Slumber are not directly comparable products, they work differently, they target different problems, and they serve different kinds of sleepers. Framing this as a competition misses the point a little. Olly is for occasional, hormone-mediated sleep timing support. Slumber is a more comprehensive system for people with persistent sleep quality issues.

After 30 days on each, I know which one I am continuing to use, Slumber's Deep Zzzs gummies.

Frequently Asked Questions

Is Slumber better than Olly for sleep?

For sleep onset alone, Olly's melatonin formula is effective and comparable. For sleep quality, staying asleep, and waking without grogginess, Slumber's Deep Zzzs offer a more targeted mechanism, particularly for people who've found melatonin-only products insufficient. The Baylor University clinical study provides stronger independent evidence than anything Olly has commissioned. The right choice depends on which aspect of your sleep needs the most support.

Do Olly Sleep Gummies make you groggy?

Some users, particularly those using the Extra Strength (5mg) or Maximum Strength (10mg) formulas, report morning grogginess, especially when they are unable to get a full night of sleep after taking the gummies. The standard 3mg formula generally produces a milder effect, but individual sensitivity varies. Slumber's Deep Zzzs are consistently reported as grogginess-free by verified customers.

Can I take Deep Zzzs if I'm sensitive to THC?

The 3mg of Delta-9 THC in a single gummy is a low dose and is not psychoactive for most adults at this level. However, individuals who are particularly sensitive to THC, new to cannabinoids, or who metabolize cannabinoids more slowly may want to start with half a gummy. Always consult your healthcare provider if you have concerns.

Are Slumber gummies legal to buy?

Yes. Slumber's products are derived from federally legal hemp and contain Delta-9 THC at or below 0.3% by dry weight, in compliance with the 2018 Farm Bill. They are legal to purchase and ship across the United States (with some state-specific exceptions, check your local regulations).

Where can I buy Olly Sleep Gummies vs. Slumber's Deep Zzzs?

Olly Sleep Gummies are available at Target, Walgreens, CVS, Walmart, Amazon, and most major grocery retailers. Slumber's Deep Zzzs are available directly at slumbercbn.com, with a subscribe-and-save option that reduces the per-serving cost and qualifies for the 30 day money-back guarantee.

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