Hi there! congratulations on your twins

its been a while since mine were this little, but we had a routine establised fairly early on. they were sleeping 12 hours at night from 8 weeks, But they were classed as full term and needed no special care so perhaps you need to allow more time for a routine to establish? Have you tried tandem feeding (the rugby ball position) that worked well with us, it allowed both to feed so therefore more time for othere things! hope all goes well xxx