I bought a Cosatto coolio pocket sprung cotbed mattress last week. I thought it would be an investment purchase but since seeing the ones in Mothercare that are a lot firmer i am worried it is too soft. It bends right over when leaning against the wall and i have tried sitting on it and it squashes flat. Has anyone else got this one and found it is okay? I know the 'buying a mattress' advice says to make sure it is firm to the touch for baby's safety... sounding really silly worrying about it but it was £90 and wanted it to last well into the toddling years.