My DS is like Shanti's DD. Any more than 10 or 15 minutes - no chance but before that, he transfers quite easily. I don't have to do anything special to his room - just cuddle him close & protect his eyes from the sunlight and he normally stays asleep. He'll often open his eyes when I first get him out of the car but goes back to sleep straight away once he's in position. If we're not at home though, he'll usually wake up.