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A traditional herbal sleep aid. One tablet, 30 to 60 minutes before bed.
Order before 3pm — same-day dispatch (MON - FRI)
~5 min consultation
Secure & confidential · Reviewed by a UK prescriber
Suitable age
18 years +
Max per order
1 pack
Consultation
Yes — free online
Kalms Night One-A-Night contains 385mg of dry valerian root extract. It is a traditional herbal medicinal product, registered under THR 01074/0002, used for the temporary relief of sleep disturbance.
Because it is registered as a traditional herbal remedy, its use is based on long-standing traditional use rather than on clinical trial evidence. That is an honest description of what it is, and it is worth knowing before you choose it over the other options.
Take one tablet 30 to 60 minutes before bed. It is for adults aged 18 and over. If your sleep has not improved after four weeks, speak to a doctor rather than continuing.
Complete our free online consultation and one of our prescribers will check that it is suitable for you before we supply it.
| Active ingredient | Dry valerian root extract 385mg |
| Product type | Traditional herbal medicinal product (THR 01074/0002) |
| Evidence basis | Registered on traditional use, not on clinical trial evidence |
| Suitable for | Adults aged 18 and over |
| How to take it | One tablet, 30 to 60 minutes before bed |
| Maximum | One tablet in 24 hours |
| Length of use | Speak to a doctor if no improvement after 4 weeks |
| Consultation | Free online, checked by a UK prescriber |
Kalms Night One-A-Night is a traditional herbal medicinal product containing 385mg of dry valerian root extract. It is registered with the MHRA under THR 01074/0002 for the temporary relief of sleep disturbance.
A Traditional Herbal Registration is not the same as a medicine licence. It means the product has been registered on the basis of long-standing traditional use, and its safety and quality have been assessed, but it has not had to demonstrate effectiveness in clinical trials the way a licensed medicine does.
We think that is worth saying plainly. Valerian suits people who want to try something gentle first, and it is the lowest-intervention option we offer. If you want a treatment with trial evidence behind it, one of the other options on our sleep service may suit you better.
Not in the same sense as the other options on our sleep service. It is a traditional herbal medicinal product, registered under THR 01074/0002. That registration covers safety and quality, and it means the product has a long history of traditional use, but it has not had to prove effectiveness in clinical trials. We would rather tell you that than let you assume otherwise.
It is not immediate. Take it 30 to 60 minutes before bed and give it a few nights. If you are expecting the effect of a sleeping tablet, this is not that, and it is not meant to be.
Not if they make you drowsy, and not if you take anything for stress or anxiety. The leaflet is clear on that, and adding a second sedating product is where the real risk lies. List everything you take in the consultation, including anything bought over the counter, and the prescriber will check.
If your sleep has not improved after four weeks, stop and speak to a doctor. Sleep that stays poor for months is usually being driven by something else, and for insomnia lasting three months or more NICE recommends a talking therapy called CBT-I ahead of any medicine or remedy.
No. Alcohol increases the sedative effect, and it also worsens sleep quality in its own right, so it works against what you are trying to achieve.
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