My son is 2 weeks old now and he's mix feeding, breast milk and formula milk. He's been suffering bit of colic in his tummy although he poop and pee regularly. Lately he can't sleep longer than an hour during day time cos of colic problem but once he poop he settle but still can't sleep longer unless he's sleeping on his stomach. So, im just wondering is it safe to allow baby to sleep on their stomach in their cot? I'm worried that he might not b able to get enough breathing.