At 7 months, babies usually need around 12-16 hours of sleep in a 24-hour period, that's typically 2-3 naps during the day plus a longer stretch at night, though honestly every baby is different! A few of us mums have noticed our 7-monthers were happier and less cranky when they hit that sweet spot, but some babies just need less and that's okay too. What matters more is if your baby seems well-rested and playful during the day, kasi yun ang sign na sila ay getting enough. If you're worried about your baby's sleep or development, best to check with your pediatrician para sure.