Aww, sobrang cute ng baby Reven! Those smiles while sleeping are the best, a lot of my mum friends say their babies do that too, parang nag-eenjoy sila even in their dreams. How many hours of sleep is he getting per day, and is he sleeping through okay? Every baby's different naman, pero if you're wondering kung normal siya, usually newborns need around 16-17 hours, and by a few months old it becomes more predictable na. Enjoy those sleeping smiles, they grow up so fast!