Sleep Gummies UK: What’s in Them, the Melatonin Rule and How to Choose

What are sleep gummies?

Sleep gummies are chewable food supplements taken in the evening, usually one to three gummies about 30 minutes to an hour before bed. In the UK they contain herbs, amino acids, vitamins or minerals rather than melatonin, which is a prescription-only medicine here. They are not sleeping pills and aren’t licensed to treat insomnia.

Here’s what you’ll usually find on the label of a UK sleep gummy, and what the research says about each ingredient on its own:

Amounts are from the UK gummies in our comparison below, checked on each brand’s own site in November 2026. For a ranked look at each ingredient, see our guide to the best natural supplements for sleep.

Can sleep gummies contain melatonin in the UK?

No. Melatonin is a prescription-only medicine in the UK, and the MHRA treats any product that contains it as a medicine, so a gummy with melatonin can’t legally be sold here as a food supplement. Melatonin gummies from the US, such as Lemme Sleep, are dietary supplements there but unlicensed medicines here.

The rule matters most for children. In August 2025 the MHRA told parents to stop giving children Nutrition Ignition Kids Magnesium Glycinate Gummies, sold online as a food supplement, after tests found 1.5mg to 1.7mg of undeclared melatonin in each gummy. A 2023 US study of 25 melatonin gummy brands found the actual dose ranged from 74% to 347% of the label.

If you think melatonin might suit you, a GP or registered online prescriber is the legal route. Our guide to melatonin in the UK covers who can get it, doses and buying online.

Which sleep gummies are sold in the UK?

The best sleep gummy for you depends on what’s in it, how much, and what you want to avoid (sugar, sweeteners, 5-HTP or CBD). Here are five melatonin-free sleep gummies sold by UK brands, with each figure taken from the brand’s own website on 9 November 2026:

Evopure isn’t connected with any of these brands, and we haven’t tested their products. Labels change, so check the pack before you buy. Brand detail is in our guides to Novomins magnesium and Cannaray CBD.

Two things stand out. Two of the five contain 5-HTP, which doesn’t mix with some medicines (see safety). And the doses are small: 10mg to 60mg of magnesium per serving, for example, against 270mg to 300mg a day the NHS says adults need from food, and 20mg of L-theanine against 200mg in the trial mentioned above.

Do sleep gummies work?

There’s no good evidence that sleep gummies work as a product. Studies test single ingredients, usually at higher doses than a gummy holds, and even then the effects are small. A gummy may still be a pleasant part of a wind-down routine, but it isn’t a treatment for insomnia, and UK food supplements aren’t allowed to claim they treat insomnia.

• Dose gaps. Glycine was studied at about 3g before bed; the Novomins gummy gives 30mg. L-theanine was studied at 200mg; gummies give around 20mg. See glycine for sleep and L-theanine benefits.
• Herbs. Chamomile, lemon balm, lavender and passionflower have small or mixed trials, mostly as teas or larger extracts. See chamomile tea, lemon balm, lavender for sleep and passionflower for sleep.
• Habits first. The NHS says insomnia usually gets better by changing your sleep habits, and long-term insomnia is treated with CBT for insomnia (CBT-I). See sleep hygiene and insomnia.

If you try one, take it for two to four weeks alongside better sleep habits, then stop if you notice no difference.

Are sleep gummies safe?

Melatonin-free sleep gummies from established UK brands are generally safe for healthy adults at the label dose. The main risks are 5-HTP with antidepressants, drowsiness with valerian, laxative effects from sweeteners, sugar, and children eating them like sweets.

• 5-HTP and medicines. Don’t combine 5-HTP (often listed as griffonia seed extract) with SSRIs, SNRIs, other antidepressants, triptans or tramadol: together they can cause serotonin syndrome, which can be serious. See 5-HTP: what the evidence says.
• Drowsiness. Valerian and several herbs can leave you groggy. Don’t mix sleep gummies with alcohol, sleeping tablets or drowsy antihistamines, and don’t drive if you feel sleepy.
• Sweeteners. Sugar-free gummies use polyols such as maltitol, sorbitol or xylitol. UK labelling law requires foods with more than 10% added polyols to warn that “excessive consumption may produce laxative effects”.
• Sugar. Sugared gummies add free sugars, which the NHS says adults should keep to 30g a day, and which can cause tooth decay.
• Children. Keep all gummies out of children’s sight and reach: they look and taste like sweets. Don’t give adult sleep gummies to children; speak to a GP or health visitor about a child’s sleep. See are magnesium gummies safe for kids?
• Pregnancy and medicines. Ask a pharmacist, midwife or GP first if you’re pregnant, breastfeeding or take any regular medicine.

CBD sleep gummies: what to check

CBD sleep gummies can be sold in the UK as food supplements if they meet the rules on THC and are linked to a novel food application on the FSA’s public list. The FSA advises healthy adults to take no more than 10mg of CBD a day, so one 10mg gummy is the whole day’s amount. CBD isn’t a treatment for insomnia, and a 2025 review found CBD-only products made no significant difference to sleep quality.

• mg per gummy and per day. Some brands suggest two or three gummies, which can take you well over 10mg.
• The FSA public list. Check the product is linked to a novel food application on the FSA’s public list.
• Lab reports and THC. Look for a batch lab report showing CBD content and THC.
• Sugar. Many CBD gummies are sugar-based.

More in our guides to CBD gummies in the UK, CBD oil vs gummies and CBD and sleep.

Sleep gummies vs drinks, capsules and oils

A gummy only has room for small amounts of each ingredient. A drink powder, capsule or oil can hold more, usually with less sugar or sweetener:

Our evening options: Evopure’s Magnesium Glycinate Sleep Complex is a berry drink powder with 290mg magnesium (77% NRV), 500mg glycine, 100mg L-theanine and 200mg each of chamomile, hops and passionflower extract per 4.75g serving, with no melatonin; the herbs and amino acids have no authorised claims. Magnesium contributes to normal psychological function and to a reduction of tiredness and fatigue. For adults who use CBD, our Sleep CBD Oil gives 10mg of broad spectrum CBD in about 0.2ml of the 500mg (half a pipette is 17.5mg), with 70mg passionflower extract per half pipette. Prefer a capsule? Our Broad Spectrum CBD Capsules come in a 10mg strength.

For other formats, see sleep capsules, gummy vitamins vs pills and magnesium powder vs tablets. Gummies for other supplements are covered in ashwagandha gummies and mushroom gummies.

How to choose a sleep gummy

• Check for melatonin. If a gummy lists it, it isn’t legal to sell in the UK as a supplement. Buy from UK sellers.
• Read the amounts, not the front of the pack. Look for mg per daily serving and how many gummies that takes.
• Look for 5-HTP or griffonia if you take an antidepressant or migraine medicine, and avoid it.
• Check the sweetener if sugar or polyols upset your stomach.
• CBD gummies: 10mg a day or less, on the FSA public list, with a lab report.
• One product at a time, for two to four weeks, so you know what helps.
• See a GP if poor sleep lasts more than a few weeks, you snore loudly or stop breathing in your sleep, or you feel low.

Buying for someone else? Our sleep gifts guide has ideas that suit adults.