Not from a bucket seat when they were infants, but after 9-10 months of age or so we have been able to transfer them to the stroller if they fall asleep in their car seats. Our stroller has always been their regular napping spot, so that may have something to do with it too. It is a comfortable stroller with a fully reclining seat and leg supports, and there is a comfortable sheepskin liner on the seat. We park the stroller right next to the car (reclined) and gently do the transfer, whispering that they can go back to sleep. Then, we cover the stroller with a breathable UV cover to darken it a bit. Push the stroller inside, and they continue the nap in it. Works like a charm, provided that they have not slept more than an hour or so in the car. If they've already taken a long nap, chances are greater that they'll wake up.
Car seat to stroller to bed almost always seems to work at night. Same routine, just park the stroller right next to the bed and do the transfer...sometimes lying down with them there for a bit.
I have never been able to do the car to bed thing. They wake up on the way. Also, with a stroller that is less conducive to sleeping, I'm not sure it would work as well. So, if you are desperate to transfer your child, here's your excuse to go out and buy a comfortable stroller. :-)
Edited by Heidi74 - 7/28/11 at 7:25pm