It's so simple you could do it in your sleep. Just open the box and unroll the flattened mattress on to your bed base. Safely cut the plastic and break the vacuum seal. Then remove all the packaging and watch your Simba rise to the occasion.

It's safe and ready for use in six hours, though it might take up to seventy-two hours for it to expand completely - so don't be surprised if it seems fuller after a couple of days. You don't have to keep any packaging, so feel free to dispose of the box or transform it into a something fun for the kids (or pets).

Mattresses in our Earth range are all delivered flat and ready for use straight away.