I LOVE this little sleeper! I designed it so your preemie could be warm and cozy all night, without the garment wiggling up around their tiny waists. The fold-up bottom keeps baby cozy and affords parents easy access to diaper changes. We add fold-over mittens to keep little hands warm and covered in case “someone” is trying to pull out feeding tubes or scratch themselves. The lap-style neckline opens up nicely for easy dressing over the head or even better, bring the gown up over wiggling little toes! Just slide arms into the sleeves and gently fold the neckline back around the baby’s neck for a great fit.