What did you use to raise the head of the cot mattress?

[Arimeh]

We lifted it with a Stephen King novel, a Dean Koontz novel and a towel on each side... sooo.. however high that is.. LOL

[Traveller]

I put pillows directly underneath the mattress, three of them in a wedge shape (so two at the top, then one) which made a massive difference to boytwin to suffered from lung issues and reflux.