I was able to get Halo Big Kid Sleepsacks from Amazon. It says 2/3T, but they're actually quite big --probably good for up to 4 or 5 years old, depending on how big your kids are. My son, now almost 3, still uses their XL Sleepsacks. They come in cotton and fleece. Hitch is, they do not ship out of the US, so if you have relatives or friends in the US, you can have them shipped to their US address and then have them ship the Sleepsacks here. Really worth the hassle.