Hi all, FTM here with a baby due in late Aug. We've got a Clair de Lune moses basket with stand, and a cot bed from Freecycle. The plan is to let the baby sleep in the moses basket for the first few months, before moving him to the cot bed. I'm about to buy the moses basket mattress with protector. Question now is how many do I need? Will one mattress plus two protectors be enough? Or two mattresses just in case? Thanks a lot!