My 12 week baby has his best naps in our second-hand babybjorn carrier, but it hurts my back and I'm not keen on the 'crotch dangle' etc. Can anyone suggest an alternative... I tried an Ergo but the straps are too chunky for my petite frame and feels like the straps are balanced on my shoulders, and baby not too keen on the insert... Overall too bulky for me. So something similar to the BB but easier on the back and better for baby would be ideal! Also tried the close carrier but worry that my baby isn't supported enough and slumps down, and he's not too keen on being wrestled into it! I'm going to a sling library next week but any recommendations in advance would be super :)