3 months - sleep interrupted

having been pampered by baby putting in 11-12 hours of sleep consistently for quite awhile now, it felt really horrible to have our nights interrupted by baby waking up for most of last week.
at first it was just once, usually at 4 or 5am, which is actually still ok (this means she slept for 8-9 hours), but she woke up every 3 hours one night starting from midnight and it was a torture. had to get the hubby to take the 6am feed because i was just too concussed.
thankfully she is back to her regular programming and has been clocking 11-12 hour nights again ... although i have been feeding her slightly more for her last two feeds just in case we are in the middle of a growth spurt.
my hats off to those mums who are still having to wake up at night to feed their babies at this stage. and again, i am so glad babywise worked for us. that, or we really lucked out with a super easy to care for/low maintenance baby. even our parents can't believe how easy it is to look after her.