Baby Merlin’s Magic Sleepsuit in Pink size small (3/6 months) 12-18 lbs I have a ton of 3-6 months clothes if you want to bundle! The Baby Merlin's Microfleece Magic Sleepsuit is the original swaddle transition product created by a Pediatric PT and mom of 4. The Microfleece Sleepsuit is ideal for babies with a strong startle reflex. Babies feel secure in the comfort of cozy microfleece fabric.