I'm thinking of changing to Omneo comfort for dd as she is quite a sicky baby and i've heard it can help. Someone said you have to add the formula to hot water which is a bit of a pain as the the mo i fill the bottles with water,leave them on the side and then add formula when needed (so water by then is at room temperaure) Anyone know if it's ok to use omneo with cool water? And anyone got any opinions on this formula?