hi
at 3 mo old most lo still have at least 1 overnight feed between DF and 7am. (yes some are sleeping from DF to morning but others are having feeds around 10-11pm, 2am-4am and then 5-7am) so if your lo wakes and is hungry feed him in the darkened room with no eye contact and only change nappy if soaked through or done a poop
if wakes for a feed at 5am do the same and put back to bed - still considered night sleep (although a few los sometimes refuse to accept that 5am is nighttime
and want to wake for the day but that is a whole other post)
up to you to decide what start time is acceptable to you for the day - with both my girls i said any waking from 6am woudl be the start of that day as i thought it is likely they had enough sleep by 6-6:30 and the birds were usually chirping outside so i felt that was a reasonable (although not great) time. others will use PU/PD with their older babaies who wake before their set time (which might be 7 or 8 am in some households). i just always found if lo woke at 6:15 and fed and then i tried to get them (and me) back to bed it was a waste of time and threw things off for the day.if your lo were to wake at 6ish and feed if you consistently treated it like a night feed and placed back in bed and walk out there is a good chance the consistency would win out and they woudl go straight back to sleep, but do note that when a lo is sleepiing all the way through without feeds not all of them do 12 hours so 6am might be enough sleep for that lo. HTH
