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Sweet Sleep Magnesium Butter
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Why Sweet Sleep
For anyone who can’t switch off at night
Hollie created Sweet Sleep after months of broken nights with her 18 month old son. It started as something for her own family, and became the product people tell us they cannot sleep without.
Sweet Sleep is a magnesium butter. Not a spray, or a pill. It is a soft balm you massage into the skin at bedtime, made in the UK in small batches with magnesium chloride, shea butter and calming botanicals.
- Keep a pot by your bed. Somewhere you will see it. The routine matters as much as the magnesium.
- Massage into the soles of your feet about 20 minutes before sleep. Shoulders, chest and legs work well too.
- Let it settle. No need to rinse. It absorbs as you wind down, and keeps working through the night.
- Contributes to a restful night. Magnesium and herbal extracts support relaxation before bedtime and encourage more restful nights.
- Soothes tired muscles. The calming effect helps ease the tension you carry into the evening.
- Builds a calming routine. Magnesium is a natural relaxant, and the ritual itself signals to your body that the day is done.
- Works while you sleep. Laboratory testing confirmed magnesium still being delivered eight hours after application.
We tested Sweet Sleep against the leading magnesium spray, on identical skin models under identical conditions.
9,388%
vs. leading spray
Greater magnesium absorption into skin surface layers.
4,442%
vs. baseline
More magnesium delivered than the control baseline.
8 hrs
sustained delivery
Continuous delivery across a full eight hour evaluation.
Sweet Sleep 8-hour delivery study · Independent laboratory · 2026
Read the full study →Magnesium chloride
Contains magnesium, which can contribute to a relaxing bedtime routine and soothe muscles.
Shea butter
A nourishing plant butter rich in fatty acids and vitamins, supporting skin softness and hydration.
Coconut oil
Deeply moisturising, naturally antibacterial and anti-fungal. Forms a protective barrier on skin.
Mango seed butter
Packed with vitamins A, C and E and rich in antioxidants, providing deep hydration for dry skin.
Wheatgerm oil
A source of vitamin E, derived from wheat but processed to remove gluten.
Tocopherol (vitamin E)
A powerful antioxidant that locks in moisture and promotes skin healing.
Beeswax
A natural protective barrier giving structure to the balm, with antibacterial properties.
Water
Dissolves the magnesium chloride flakes to create the texture.
Summer Stillness oil blend
Fresh citrus, cooling herbs and soft florals. Contains naturally occurring allergens including linalool, limonene and geraniol.
Dermasoft 1388 Eco and GMCY
Natural preservative and skin-conditioning agents that stay gentle and non-irritating.
Suitable for anyone aged 6 months and over, from little ones to adults, to give sleep a gentle nudge.
Always do a patch test before use. If you are unsure whether it should be used on you or your child, do ask your GP. Do not use it if the skin seems uncomfortable or aggravated after use.
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