Napping in baby Bjorn rocker

My coming 5 week old baby loves to nap in his baby Bjorn rocker. He doesnt fall into deep sleep in the afternoon so once you carry him to the cot he wakes up and cries bloody murder. I know it’s not ideal for him to nap in his rocker but it doesn’t seem like we have any other alternative. Carrying also doesn’t help all the time. Can any mummies advise what worked for them besides the rocker?