The honest answers.

A flat cotton sheet woven with 30% stainless steel fibre. Two elastic straps run the length of the mattress, head to foot, one on each side. It sits under your own fitted sheet and connects by a cord to the earth pin of a wall outlet. Same electrical contact as standing barefoot on grass, overnight.

Lay it flat above your mattress protector. Run the two elastic straps the length of the mattress, one on each side, from head to foot. Snap the grounding cord to the sheet, plug the cord into the earth pin of a standard earthed wall outlet, then put your own fitted sheet over the top and sleep as normal.

Yes. The grounding sheet sits above a mattress protector and under your fitted sheet. A topper sits under it if you use one. The doona goes on top of you. Works with any standard mattress: memory foam, hybrid, latex or innerspring.

No. You sleep on your own fitted sheet. The connection works through a cotton fitted sheet, so bare skin on the grounding sheet is not required. Thick synthetic layers between you and the sheet will reduce it.

Two sizes, Double/Queen (152 × 203 cm) and King (183 × 203 cm), in two colours, Midnight and Stone. Stone straps are white. Midnight straps are black.

Machine wash cold on gentle. No bleach, no fabric softener, no dryer sheets, those coat the conductive fibre and reduce performance. Line dry or tumble low.

Around 12 to 24 months of normal weekly washing before the conductive performance fades. Replacement options are available.

Grounding is scientifically proven in published human studies and electrical measurements. The strongest sleep result is a 2025 randomised, double-blind, placebo-controlled study that reported longer actigraph-measured sleep time versus sham after 30 days. Other outcomes are promising but still preliminary, and we list study limits clearly on the science page.

There is no reliable evidence-based timeline for an individual. Studies report effects across minutes through 30 days or longer, and personal responses vary. That is why we offer the 100-night sleep trial.

Some customers track their sleep and recovery on a wearable and watch their own data over the trial. Wearable trackers may show measurable change, but results vary from person to person, we can't promise a specific number.

It is designed to connect only to the earth pin and includes a safety resistor in the cord. Use only with a correctly grounded outlet and verify the outlet before use.

No. Cadian is a textile product, not a medical treatment. It isn't intended to diagnose, treat, cure or prevent any condition, and it's not a substitute for medical care.

If you have a medical condition or any concern, speak with your doctor before making changes to your routine. Cadian is a supportive product, not medical advice.

You should consult your cardiologist before using grounding bed sheets if you have a pacemaker or implantable cardioverter-defibrillator (ICD), as specific interactions have not been clinically studied.

Sleep on your Cadian sheet for up to 100 nights. If your sleep is not better, return it in good condition for a full refund. Customer pays return shipping and there is no restocking fee.

We ship across Australia only. Standard shipping takes 4 to 8 business days. It is free on orders $100 and over, $10 under $100, and free on every subscription order. We do not offer express or international shipping.

Message us within the 100-night window and we will send return instructions. You pay return shipping. Once we receive the sheet in good condition, your full refund is processed within five business days.

Your sheet includes one free pack of Mouth Tape ($34), one free pack of Nose Strips ($30), an extended 3-year warranty ($49) and free shipping ($10). Total value $123. The tape and strips are one-time packs, not a subscription.