Our cordless, wearable device delivers targeted warmth to relax uterine muscles and ease cramps. Optional gentle vibration helps increase local blood flow and reduce pain perception. It’s lightweight, discreet under clothing, and designed for everyday use — at work, home, or on the go.

On high heat, the device lasts approximately 3–4 hours. It automatically shuts off every 30 minutes for safety — just tap it back on to continue. A full recharge takes about 1 hour via USB-C.

Yes — the built-in safety auto-off and low-profile design make it safe for naps or overnight use. We recommend starting at a lower heat level and wearing the device over thin sleepwear for maximum comfort.

Rinse cold until the water runs clear, then machine-wash at 30 °C with a mild detergent. Skip fabric softener, as it can reduce absorbency. Line-dry for best results — avoid tumble drying.

Most customers wear them for 6–8 hours during the day and up to 10 hours overnight, depending on flow. For heavy days, pair them with a cup or tampon for added confidence.

Check our size guide before ordering. If you’re between sizes or want a looser fit on bloated days, size up. Our underwear is designed to feel soft and secure without digging in.

Keep your bedroom cool and dark, avoid screens 1 hour before bed, and use our period underwear for leak-free confidence. Many customers find that using the heat device 15 minutes before sleep reduces cramping and improves sleep quality.

Absolutely. Many use the heat device for lower-back tension, digestive discomfort, or relaxation during PMS. The underwear can also be worn as everyday leak-proof underwear for light incontinence or postpartum care.

We currently deliver within the UK only. Delivery is free on orders over £30; below £30 it's £4.95. You'll find delivery times in our Shipping Policy.

We accept returns within 30 days of delivery for unused devices in original packaging. Period underwear comes with a 60-day trial: wear them, wash them, and if they're not right for you, email us within 60 days of delivery for a full refund, even if worn. One trial per customer, on your first order. Please contact our support team for help with exchanges.