My babies were huge too! They were average when they were born, just a hair over seven pounds, but they were both 20 lbs at 3 months!

A sling was difficult to use, just because all that weight was on that one shoulder, and that would get VERY uncomfortable very quickly! What saved me was a mei tai. It's a front carrier that uses both shoulders and the waist to support the weight. It can also be worn on the back, but I personally didn't like that b/c I couldn't sit in a chair with a back!) The mei tai was much more comfortable for long-term babywearing! (Though I still used a sling for "quick and dirty" baby wearing, like into the post office, or the store, library, etc.)

HTH!

I agree with Sarah, as my babies have reached 20 by 6mo. I would also maybe try an Ergo or Becco for long term wear. For us the earliest I could get them on the back the better!---more often at 5mo maybe depending on your own skill and babies head control. If I could sit in a chair, I wanted to take them off! So Back is good to me, especially when they start wanting to grab everything!

i've always just laid down w/my babies and either nursed them or rubbed their backs. they eventually go to sleep that way for me, then i can either nap w/them or get up and do something.

I too, laid down with my first 2 babies, until I had my last 2 babies, then I needed a carrier that could enable me to meet the needs of my older children AND allow my babe to sleep. I love the mei tai's or soft buckle carriers (like Becco, Ergo, Calyx) but my woven wrap was great for a bog baby that is also young. I too have 20 lb babes around 4-6 months. I started with back carries around 2 months with my wrap and used my mei tai or soft buckle carrier for shorter times in the carrier. My body moving helped my baby top stay asleep.