Mostly on your side? Use the high side (12 cm). Mostly on your back or your stomach? Use the low side (8 cm). Not sure? Start on the high side and turn it round if it feels too high. That's the point of having two.

Some people notice it after the first night. For most it takes a week or two, because your neck has to get used to being supported. That's why you get 30 nights to try it.

New memory foam can have a light smell for the first day. Take it out of the packaging and let it air for 24 to 48 hours and it goes.

It comes with its own quilted cover, so you don't need one. A standard pillowcase can go over it, but it may be a little loose because of the shape.

It's supportive, not hard. The foam softens slightly with the warmth of your body and holds your head without letting it sink.

Email us within 30 days of delivery. Once the pillow is back with us, you get a full refund. No awkward questions.

Delivery is free to the UK and Ireland. We send your order within 1 to 3 working days and it usually arrives within 7 to 14 working days, with a tracking link.