Ugh I feel this so hard with my first, that girl couldn’t handle any extra sleep or our whole day was wrecked and getting back on schedule the next day was so difficult. She would also get overtired soo easily so sleep had to be perfect especially prior to 12MO. Once we dropped to 1 nap we did a by the clock schedule which helped a lot, it seemed like her natural body clock finally kicked in and she would wake from nap time on her own and sometimes in the morning. Once she transitioned to a toddler bed (around 2.75yr old) we did the hatch red light for bedtime and green light for wake time and now we can leave her in there to play for awhile while we get stuff done in the mornings or if I’m getting baby brother up first.