DS slept through at 13 months.
(Well he did once sleep through at around 8 months but it was fluke and /or cruel joke).
co-sleep - Only until 8 weeks old
co-bed - see below
co-sleep/co-bed later in the night - Always started in own room, co-slept from 2nd / 3rd feed until 4-5 months, thereafter always in own room from 7 - 6.30am unless ill.
Fed lying down - yes, always from around 2 months
fed sitting up - initially yes, until I fell asleep with DS dangling precariously from my arm over edge of bed, & then we quickly got the hang of lying down feeding!
After 4-5 months, lying down feeding took place on a makeshift bed on floor in his room, where I would go, feed, put him back in cot, go back to bed (mostly, unless v. knackered).