Can the AeroSleep system be used with an ordinary fitted sheet or only an AeroSleep fitted sheet?

AeroSleep products work best with the right AeroSleep fitted sheets.
The AeroSleepBaby Fitted Sheet is an elastic fitted sheet made from breathing fabric specially developed for the AeroSleep system. The scientific tests of our technology were also carried out in combination with our fitted sheets.  The AeroSleepBaby Fitted Sheet guarantees maximum air permeability. It ensures that there is as little obstruction as possible of air circulation between the baby and our AeroSleep mattress cover. It offers your baby unrestricted breathing, a lovely softness and healthy sleep comfort.
The AeroSleepBaby Fitted Sheet is certainly recommended for babies up to the age of two. After that age, you may also use an ordinary jersey sheet or molton fitted sheets.