My son whose 7 yrs old still insists he sleep in our bedroom. My wife and me can't get intimate as he's always around snooping too... How can I stop my lil devil?

My sister had the same issue with her daughters. What she did was to set up the girls' room with the help of their kids. They got them involved with the decision-making in terms of colors, which furniture to put where, among others. Then they started "acclimatizing" the girls slowly in the room with short naps. First with the mom then the dad. And eventually my sis and hubby got them to sleeping into their own room by themselves.