We are trying to transition our 9 wk old from sleeping in a cradle swing (and sometimes in a dockatot) to the crib. Everything is his room where I sleep on the carpet. So change in room environment is not a problem. He keeps waking himself up by startling. Does startle reflex go away soon or will slightly inclining one side of the crib help? Also we don't have a mobile in the crib, will adding that or a crib soother help? He had gotten used to sleep 5-6 hrs in the swing, now he sleeps max 2.5 hrs in the crib. Even then I have to pat him several times. It's only been 4-5 days of us trying to transition him.

Any other suggestions?