Try "Healthy Sleep Habits, Happy Child" by Dr Marc Weissbluth. He's studied thousands of sleep patterns in babies and children.
Regular nap times in the day are important imo. It seems to be widely accepted that a constant waking up time in the morning is important for setting the body clock and 7am is the natural waking time for most babies, though it can be anything from 6-8am.
By the clock, (according to paediatrician mentioned above), an ideal sleep schedule for a baby of this age is: Wake at 7am, naps at 9am and 1pm for at least an hour - leave them to sleep as long as they need to, about 20% of babies need a catnap later in the day, bed at 7pm with brief wakings for feeds only - no lights on, no play time after bedtime. These times are moveable by 1-2 hours for most babies, but should be regular for each baby. So waking could be 6 and nap at 8 and 12, but it should be more or less the same every day.
Try waking your baby (the only time it's acceptable to wake a sleeping baby!) at the same time every day, let's say 7am. Let him get lots of light as this helps set the body clock.
When he next shows signs of tiredness; rubbing eyes, quietening down, irritable etc, it's likely to be somewhere between 8.30am and 9.30am. Bring him back to his bedroom (it can be dark/ dim - at this stage they won't be confused between day and night sleep, provided they've had daylight on waking) and have a cuddle/ feed whatever it takes to make him calm. Put him in his cot for a nap. After about 4 months most babies get a more valuable sleep in their beds, rather than a buggy or pram. Same for lunchtime nap.
Bedtime, do a bedtime routine as described in the other posts.
If a brief suck is 5 mins, then yes, it could be more or less a full feed. If you're not sure, and he will take a bottle of expressed milk, it can be a worthwhile exercise to see how much he's taking at each feed at night. When I tried this with mine at the same age, I realised that the 1-2oz feeds were for comfort on waking. I stopped going to her and realised she would just snuffle around for 5-10 mins and "complain" rather than actually cry and then would go back to sleep again. My running in to her at every sound was actually reinforcing her waking habit - she wasn't hungry.
I also more or less stayed in for two weeks in order to get this schedule set in and it suits her down to the ground. She's a slave to her sleep and at 8 months sleeps for twelve hours a night and two two-hour naps in the day!
HTH!