Naps in baby carrier!

Emma
Hi. My baby will only nap in her baby carrier! She's 5 months old. I know it soothes her and I do enjoy it, but she naps 4 times a day so it's becoming quite difficult. Basically I don't get any rest /and/or I can't get anything done. She just loves being in people's arms! She doesn't fall asleep on her own in the cot. At night I breastfeed her to sleep and she sleeps quite well. I do sometimes think she would sleep better in her cot than in the carrier but not sure how to help her transition without CIO. Do you think this is a phase and she'll eventually get sick of the carrier or prefer to sleep in her cot ? She's a small baby that needs reassuring. Not sure what to do. Any advice is welcome. Thanks.