Disclosure
This article contains affiliate links. Slumber and Ozlo, both reviewed in the second half, run affiliate programmes we participate in, and we may earn a commission if you buy through our links. We do not accept payment for favourable coverage. Read our full affiliate disclosure.
This page is informational only and is not medical advice. Supplements are not FDA-approved treatments and none of this should be read as a substitute for evaluating a possible sleep disorder with a clinician.
The short version
Poor sleep raises ghrelin and lowers leptin, which makes appetite harder to manage — so sleep genuinely matters to weight, not as a wellness slogan but as a mechanism.
The strongest development here is pharmaceutical, not supplemental: Zepbound became the first medication approved for obstructive sleep apnea in December 2024. If you have obesity and undiagnosed OSA, that is a far bigger lever than anything sold in a gummy.
Why Sleep Belongs in a Weight Conversation
The mechanism is hormonal and well described. Short or fragmented sleep raises ghrelin, the hormone that signals hunger, and lowers leptin, which signals fullness. The result is that you wake hungrier and harder to satisfy — the same appetite axis a GLP-1 works on, pushed in the opposite direction. Poor sleep also degrades insulin sensitivity and reduces the appetite for physical activity.
The relationship runs both ways, which is what makes it worth treating rather than tolerating. Excess weight contributes to obstructive sleep apnea; the resulting fragmented sleep worsens appetite regulation; and that makes weight harder to shift. Breaking the loop at either end helps.
The Big One: Zepbound Is Approved for Sleep Apnea
This is the most significant fact on this page, and it is still not widely known. On 20 December 2024 the FDA approved Zepbound (tirzepatide) for moderate-to-severe obstructive sleep apnea in adults with obesity — the first and only prescription medicine approved for the condition.
The approval rested on the SURMOUNT-OSA programme, which randomised 469 participants to tirzepatide at a maximum tolerated dose of 10mg or 15mg, or to placebo. It ran as two studies: one in people unable or unwilling to use positive airway pressure therapy, and one in people using PAP during the trial. The primary endpoint in both was change in the apnea-hypopnea index — the standard measure of how often breathing stops or becomes shallow — at 52 weeks. Up to 50% of adults taking Zepbound no longer had symptoms associated with OSA after one year.
What this means practically
If you have obesity and any suspicion of sleep apnea — snoring, waking unrefreshed, a partner reporting that you stop breathing — get assessed. OSA is heavily under-diagnosed in people with obesity, carries real cardiovascular risk, and now has an approved medication alongside PAP therapy.
It may also change your insurance position. A diagnosed OSA indication is a different conversation with a payer than weight loss alone, and several providers we review offer help pursuing prior authorisation — see our Ro review for what an insurance concierge actually does.
What GLP-1s Do to Your Sleep in the Short Term
Separately from apnea, starting a GLP-1 commonly disturbs sleep for a while. Nausea during titration is the usual culprit, and it tends to be worst in the days after a dose increase. Fatigue is also frequently reported. Most of this settles as you stabilise on a dose — our side effects guide covers the timeline. Persistent or worsening sleep problems are worth raising with your prescriber rather than layering supplements on top indefinitely.
Where Sleep Supplements Actually Sit
Given all of the above, the honest framing for a sleep supplement is modest: it may help you sleep, which may make appetite easier to manage. It is not a weight-loss product, and it is not a treatment for sleep apnea — no supplement is.
What the CBN evidence shows
CBN (cannabinol) is the cannabinoid most sleep products are now built around. For a long time the evidence was preclinical and anecdotal, with no published blinded, placebo-controlled trials of CBN alone for disturbed sleep. That has improved: a large randomised, double-blind, placebo-controlled trial found CBN at 25mg, 50mg and 100mg all significantly improved sleep quality against placebo, with most of the 50mg group achieving a clinically important improvement. A 2025 meta-analysis likewise associated formulations containing THC and CBN with improved sleep quality.
The finding the marketing leaves out
In that same trial, there was no significant difference between any CBN dose group and a group taking 4mg of melatonin. CBN performed about as well as melatonin — a supplement that costs a few dollars a bottle.
Note also the doses. The trial tested 25mg, 50mg and 100mg, and the clinically important result came at 50mg. Several CBN products on the market contain considerably less than the lowest dose studied.
Slumber, Reviewed
Slumber is a CBN-focused sleep brand with a broad range of gummies, tinctures, capsules and powders, plus daytime cannabinoid products. It is a real, established operation: it states every batch is third-party lab tested, publishes a 30-day money-back guarantee, carries the standard FDA structure/function disclaimer, keeps all products under 0.3% THC, and has accumulated substantial review volume — 1,802 reviews at 4.4 out of 5 on its flagship gummy.
| Product | Price | Disclosed amounts |
|---|---|---|
| Deep Zzzs Gummies | $60, or $45/mo subscribed | Full spectrum. CBN and CBD amounts not stated. |
| Pure Sleep Fast-Acting CBN | $60, or $45/mo | 20mg CBN — below the 25mg lowest dose in the trial above. |
| Night Caps CBD/CBN capsules | $60, or $45/mo | A “pre-measured 44mg dose” — split between CBD and CBN is not stated. |
| Magnesium glycinate capsules | $29, or $21.75/mo | The cheapest and most conventional option in the range. |
| Night Lytes magnesium powder | $60, or $45/mo | 500mg magnesium complex, melatonin-free. |
| Crave Less THCV tincture | $75, or $56.25/mo | Marketed on appetite reduction — see the warning below. |
Three things to weigh
- Most products do not disclose cannabinoid amounts. Only two in the range state a figure. “Full spectrum” and “triple the CBN” are not doses, and without a number you cannot compare a product against the trial evidence or against a cheaper competitor. This is the same standard we apply to any supplement label.
- The stated results are not attributed to published studies. Figures like “82% of participants achieved more nights of quality sleep” and “80% found it easier to fall back asleep” appear without a citation, sample size or method. Treat them as internal marketing metrics, not evidence.
- Compare against melatonin and magnesium first. The trial evidence puts CBN roughly level with 4mg melatonin. Slumber's own magnesium glycinate capsules are $29 against $60 for the cannabinoid products. If you have not tried the cheap, well evidenced options, start there.
On the appetite-suppression product
Slumber sells a THCV tincture called Crave Less at $75, marketed with the claim that “participants reported a 43% reduction in appetite and a 30% increase in energy levels”. No study, population or method is cited for that figure.
For readers of this site the framing matters: a supplement marketed on appetite suppression to a weight-loss audience is the same category we examine in our piece on “Ozempic alternative” supplement claims. Human evidence for THCV as an appetite suppressant is thin, and nothing sold as a supplement is comparable to a GLP-1 medication. Buy the sleep products for sleep, if you buy at all.
Third-party tested, a 30-day guarantee, a proper FDA disclaimer and a large review base — this is a real operation, not a fly-by-night one. It loses ground for not stating cannabinoid amounts on most products, for uncited efficacy percentages, and for an appetite-suppression product that does not belong in a weight-loss conversation.
A sleep supplement · Not a treatment for sleep apnea or a weight-loss medication
Ozlo Sleepbuds — the Non-Pharmacological Option
Worth considering before any supplement, because for a large share of sleep problems the cause is environmental rather than chemical. If what wakes you is a snoring partner, traffic or a thin wall, no amount of CBN or melatonin addresses that — and a device that does is a more direct fix.
Ozlo Sleepbuds 2 are wireless earbuds built specifically for sleep, made by Drowsy Digital and developed by a team of former Bose engineers as a successor to Bose's discontinued Sleepbuds. They combine a passive seal with tuned masking sound, stream audio, carry built-in sleep sounds and a private alarm, and run up to 14 hours. Biometric sensors detect when you fall asleep and switch from whatever you were streaming to noise masking. The app tracks sleep stages alongside environmental noise, light and temperature — which is genuinely useful diagnostic information if you do not know why you keep waking.
| Detail | What is published |
|---|---|
| Price | $279 including a sleep mask and travel case (a “$337 value” bundle). Other listings report $299 to $399, and a $22/month financing option. |
| Return and warranty | 30-day returns and a 1-year warranty (two years in the EU and UK). |
| HSA/FSA | Eligible — which materially changes the effective price for many buyers. |
| Evidence | A sleep-medicine physician endorsement, but no published clinical studies or peer-reviewed sources cited. |
What it is not
Ozlo masks noise. It does not treat obstructive sleep apnea, and the endorsement on its own site is carefully worded to say exactly that — a “non-pharmacological way to block out disruptive nighttime noise”. That precision is to its credit.
For readers of this page it is the important caveat. If you have obesity and are waking unrefreshed, the first question is whether you have undiagnosed OSA — a condition with a medication now approved for it, as above. Earbuds that make snoring less audible to you do nothing about your own apnea, and could mask the symptom that would otherwise send you to a doctor.
A well-built device from a credible team, addressing a cause of poor sleep that supplements cannot touch, described without overreach and returnable within 30 days. HSA/FSA eligibility softens the price. Marked down for the absence of published studies and for list pricing that varies by a hundred dollars or more between sources.
Masks noise · Not a treatment for sleep apnea · HSA/FSA eligible
Frequently Asked Questions
Is any GLP-1 approved for sleep apnea?
Yes. On 20 December 2024 the FDA approved Zepbound (tirzepatide) for moderate-to-severe obstructive sleep apnea in adults with obesity — the first and only prescription medicine approved for the condition. The approval rested on SURMOUNT-OSA, which randomised 469 participants to tirzepatide at a maximum tolerated dose of 10mg or 15mg or to placebo, across one study of people unable or unwilling to use positive airway pressure and another of people using PAP during the trial. The primary endpoint was change in the apnea-hypopnea index at 52 weeks, and up to 50% of adults taking Zepbound no longer had symptoms associated with OSA after one year.
Why does poor sleep make weight loss harder?
Short sleep shifts the hormones that govern appetite — raising ghrelin, which signals hunger, and lowering leptin, which signals fullness — so you wake up hungrier and less easily satisfied. It also degrades insulin sensitivity and reduces the willingness to exercise. That makes sleep a genuine variable in weight management rather than a lifestyle nicety, and it means a sleep problem left untreated works against whatever else you are doing.
Does CBN actually work for sleep?
The evidence is better than it was, and still limited. For a long time there were no published blinded, placebo-controlled trials of CBN alone for disturbed sleep. A large randomised, double-blind, placebo-controlled trial has since found that CBN at 25mg, 50mg and 100mg all significantly improved sleep quality against placebo, with the 50mg group showing a clinically important improvement for most participants. The important nuance: there was no significant difference between the CBN groups and a 4mg melatonin group. CBN performed about as well as melatonin, which costs a fraction as much.
Will a sleep supplement help me lose weight?
Not directly, and you should be sceptical of anything implying otherwise. Better sleep may make weight management easier by moderating appetite hormones, but no sleep supplement is a weight-loss treatment and none should be compared to a GLP-1 medication. If a product markets appetite suppression to a weight-loss audience, apply the same scrutiny we apply to any "Ozempic alternative" claim — see our guide to those claims.
Do GLP-1 medications disrupt sleep?
They can, particularly early on. Nausea during titration is the most common reason people report broken sleep on a GLP-1, and eating patterns often shift enough to affect bedtime routines. Fatigue is also commonly reported. These usually ease as your body adjusts to a dose. If sleep problems persist or worsen, that is a conversation for your prescriber rather than something to self-treat indefinitely with supplements.
Should I get tested for sleep apnea?
If you have obesity and snore, wake unrefreshed, or have been told you stop breathing in your sleep, it is worth raising with a doctor. Obstructive sleep apnea is both common and seriously under-diagnosed in people with obesity, it carries real cardiovascular risk, and — as of the Zepbound approval — there is now a medication indicated for it alongside PAP therapy and weight loss. Untreated OSA also makes everything else about weight management harder.
Where to Go Next
- Zepbound dosage chart — the titration schedule for the drug approved for sleep apnea
- “Ozempic alternative” supplement claims — how to read appetite-suppression marketing
- GLP-1 provider reviews — including which providers offer brand-name Zepbound
Medical Disclaimer
We're not doctors, and this article is for education only — it isn't medical advice. GLP-1 medications are prescription-only and require evaluation by a licensed healthcare provider. Individual results vary widely, and only a clinician who knows your history can determine what is safe and appropriate for you. See our full medical disclaimer.
Keep Comparing
Every provider we've researched, with published pricing, medication type, and what's actually included.
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