Help with night baby sleeping routine...?

I have 5 wk old twins... tonight is our first night putting them in their cribs... we went and bought those sleep things (that hold them in place) and I have put them both down... they cried for 10 minutes and are sleeping. My questions is.. when they wake up (every 3 hours) I should do the same thing until morning? Then should I put them in their bouncers/ boppies? My whole problem is they spent the first 5 wks in their bouncers so I wm not sure what to do with them/ what time through out the day.... I just don't want to mess up what I accomplished tongiht. Any help would be greatly appreciatted! Thank you!