Your Eight Sleep Tracker arrives clean and ready to be used.
If you have a spill, the top layer of your Eight has received a hydrophobic treatment so it is water-resistant and stain-resistant, but not waterproof. Use a damp cloth for spot treatments. It is not machine-washable.
If you prefer further safeguarding, feel free to use any a mattress protector to your liking! Make sure you place it over the technology layer.