DD is 17 weeks and is a long baby in addition to being quite chubby! I am finding that many of the vests and sleepsuits we have bought or have been given have been manufactured with the shorter, skinnier baby in mind. Am going to need to buy some 6-9 month sized ones as she will soon be out of 3-6. Which brands are best for the baby requiring a slightly roomier garment?! Many thanks!