How much sleep your baby needs, on average:
• Newborns to 3 month olds: 10-11 hours at night, 4-5 hours day in 4-5 naps (short naps are common)
• 4 to 5 month olds: 10-12 hours at night, 2-4 hours day in 3-4 naps (at least two 1+ hour naps)
• 6 to 8 month olds: 11-12 hours at night, 2-3 hours day in 2-3 naps (two 1+ hour naps and 1 short one)
• 9 to 17 month olds: 11-12 hours at night, 2-3 hours day in 1-2 naps (1+ hour long)
• 18 month olds to 3 years: 10-12 hours at night, 1 nap (1 to 3 hours long)
• 3 to 5 years: 10-11 hours, sometimes 1 nap (1 to 2 hours, usually), but most lose between 3 & 4)
• 5 years+: 9-10 hours, no nap
These are just general guidelines.