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Essential oils, lavender and sleep sprays: are they safe for babies?

Be cautious. Good evidence that they help a baby sleep is lacking, and NIH says aromatherapy research needs bigger, better-designed studies. Oils used undiluted can irritate the skin, several are poisonous when swallowed, and repeated use of lavender and tea tree oils on the skin has been linked to breast growth in young boys. Keep oils out of reach and out of the crib, and talk to your pediatrician before using them.

About the scope of this page: Dr. Sam holds a Doctor of Pharmacy and is a licensed pharmacist; she is not a physician. Here we explain, in general terms, how a medicine, supplement or remedy relates to sleep, and this is no substitute for your child’s pediatrician. Talk to your child’s pediatrician before giving your child any medicine, supplement or remedy, and always follow the product label.

In brief

For an adult, a soothing scent can be a nice part of winding down. For a baby, though, the possible harms are real and the sleep benefit hasn’t been shown.

Reaching for a scent usually reflects a hope that something simple will make bedtime calmer. What actually calms bedtime is a routine and a way of falling asleep that suit your baby. That is what Actually Sleeping works on, with a plan written by Dr. Sam, who is a pharmacist.

What regulators and the evidence tell us

  • Little evidence for sleep. According to NIH, a 2021 review suggested aromatherapy might improve sleep quality, though the researchers called for larger, more rigorous studies. None of those studies involved babies.
  • Skin. The AAP points out that applying pure, undiluted oils directly to the skin irritates some people’s skin.
  • Effects that mimic hormones. The New England Journal of Medicine published a report on three young boys who developed breast growth after repeatedly using products that contained lavender or tea tree oil. Once the products were stopped, the growth went away, and lab testing found the oils had weak estrogen-like and anti-androgen effects. The authors judged that the oils probably caused it, while NIH notes it isn’t clear the oil was responsible. In either case, it argues for caution with everyday use on young children.
  • Poisoning. Because wintergreen oil contains methyl salicylate, the CPSC requires child-resistant packaging for it and warns that young children who swallow it can suffer serious injury or death. The CPSC also requires child-resistant packaging for thin, oily products, including some baby, bath and massage oils, since children under 5 who swallow and inhale them can develop chemical pneumonia.
  • Chest rubs. The AAP lists mentholated chest rubs as suitable only for children 2 years and older.

Diffusers and pillow sprays

Good evidence that diffusing oils or spraying bedding helps a baby sleep doesn’t exist. Spraying leaves product on the sleep surface, and a diffuser places a hot or wet device, plus a bottle of concentrated oil, within reach just as babies start getting mobile. Keep to the AAP’s safe sleep rule in its simplest form: only the baby goes in the crib, on their back, on a firm, flat surface, with no soft bedding or other objects.

If you keep oils at home

  • Lock every bottle away out of sight. Child-resistant doesn’t mean child-proof.
  • Unless the pediatrician has told you to, don’t put essential oils on a baby’s skin, diluted or undiluted, and keep them away from the face and hands.
  • Check the labels of “sleep” and “calming” products for melatonin or other active ingredients.
  • If a child swallows any oil, call Poison Control at 1-800-222-1222 immediately.

Questions for your pediatrician

  • “With my baby’s eczema or sensitive skin, is any scented product safe to use?”
  • “My child wheezes or has asthma. Should we avoid diffusers and scents at home?”
  • “For congestion at my baby’s age, what is safe?”

A sleep problem isn’t solved by a product

Predictability calms babies; a smell doesn’t. The night is decided by the routine, the timing and the way a baby falls asleep, and all three have to suit the particular baby you have. General advice on each is easy to find; tailoring it to one baby is the hard part.

Actually Sleeping writes a plan around your baby’s age, feeds, temperament and schedule, coaches you bootcamp-style before the first night, checks in 1:1 daily and coaches naps until they are solid. Our written guarantee: We guarantee that your baby will sleep 8–12 hours through the night within 14 days of consistent, correct implementation of your sleep plan. Otherwise, you get a full refund. Parents talk about it in the client video reviews.

Book the free consultation and work out the routine together with our team.

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With Actually Sleeping you get 1:1 coaching: Dr. Sam writes a sleep plan for your baby, we coach you bootcamp-style before the first night, and we check in daily until it is working. We have coached 700+ families, collected 129 video reviews, and put our guarantee in writing: 8–12 hours through the night within 14 days, or a full refund.

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Common questions

Can I safely diffuse lavender in the nursery?

Good evidence that it helps a baby sleep is lacking, and a diffuser puts concentrated oil within a child’s reach. If you do use one, keep both the device and the oil out of reach and away from the crib area, and check with your pediatrician, particularly if your child has asthma or wheezes.

Could a lavender baby wash cause problems?

In a NEJM report, three young boys developed breast growth linked to repeated use of lavender and tea tree products, and it went away once the products were stopped. NIH points out that the cause isn’t certain. Choosing unscented products sidesteps the issue.

Which essential oils pose the greatest danger to children?

Wintergreen oil contains methyl salicylate, so the CPSC requires it to come in child-resistant packaging and warns that it can cause serious injury or death if young children swallow it. Treat any oil as a poison, and if one is swallowed, call 1-800-222-1222.

Is it safe to use a baby sleep spray?

No benefit has been proven, and spraying leaves product on the sleep surface. Check the label for melatonin or any other active ingredient, keep the crib flat and empty, and talk to your pediatrician before you use one.

References

  1. National Center for Complementary and Integrative Health (NIH). Sleep Disorders and Complementary Health Approaches: Usefulness and Safety.
  2. HealthyChildren.org (AAP). Aromatherapy for Children.
  3. Henley DV, Lipson N, Korach KS, Bloch CA. Prepubertal Gynecomastia Linked to Lavender and Tea Tree Oils. N Engl J Med. 2007;356:479-85.
  4. U.S. Consumer Product Safety Commission. Warning on a wintergreen essential oil sold without child-resistant packaging. December 2025.
  5. U.S. Consumer Product Safety Commission. CPSC Requires Child-Resistant Packaging for Common Household Products Containing Hydrocarbons, Including Some Baby Oils.
  6. HealthyChildren.org (AAP). Coughs and Colds: Medicines or Home Remedies?
  7. HealthyChildren.org (AAP). Safe Sleep: Back is Best, Avoid Soft Bedding, Inclined Surfaces and Bed Sharing. 2022.