i only let dear son sleep in yaolan in the daytime. night time will be on his cot or co-sleep with us. only that time when our AC was spoilt, we let him sleep in yaolan but after he is deeply aslp, we still carry him out. evn during daytime, mostly i will carry him out after he is aslp.
at 11mth onwards, we slowly wean him off, took 2-3 mths to fully wean him off yaolan.