Shoulder to ankle is maybe 53"? Or 54 idk. But I think the 16 might be good cuz the waist is bigger than urs.It depends. (no pun intended) I have a 13/14 from a few years back, and I'm 5'4" with a 25" waist and 30" hip. How do clothes usually fit you based on size charts? A little on the big side or too small? A key thing with sleepers is shoulder to ankle length. If it's too long, the crotch will be hanging low, and extra material will pool around your ankles. If it's too short, obviously it won't fit. For me my shoulder to ankle is about 54". If we look at the LKS size chart, my height falls in the 13/14 size. The shoulder to ankle is 57.5" which gives me a few inches to bend over.
Also, note that the cotton they use is stretchy. I believe there is a thread somewhere from when larger/"our" sizes came out with photos and sizing fits. Hope this helps!
You just confirmed my Christmas gift in late january or early february, I'm around 5"10 and 190lb, I was extremely afraid to order and have a very tight uncomfortable sleeper, the USD to CAD exchange rates aren't cheap either, but now that I know someone with a much bigger build than mine can fit in them, I will take the chance to order one, if they have size 18 at the time I'll be ready to purchase it of course.They will be getting a new shipment in January/February and maybe a size 20 as well.
However I'm 5"10 and 220 lbs and the size 18 fit well. The size 16 are very tight on me. The pajamas are designed to be tight fitting. The zipper technique I use to get them on and off is to pull the fabric up or down when you can't reach the zipper between the shoulder blades.
I love diapers but the security of this sleeper gives you the best comfortable feeling I have ever felt. It's like a constant hug and feeling of euphoria.
Highly recommend for everyone and they are also super cute and adorable.