Common closure types on pink sleepers include two‑way (dual) or twin/2‑pull zippers, front full‑length zippers (often with a covered neck), and hook‑and‑loop fasteners (Velcro) used on swaddle wraps.
Some pink sleep sacks and swaddles list explicit TOG ratings — examples include 1.0 TOG for certain sleep sacks and 0.5 TOG for some transitional swaddle sacks.
Common built‑in features include fold‑over mitten cuffs or built‑in mittens, covered zippers at the neck, front full‑length or two‑way/dual zippers for easier diaper changes, half‑length/arms‑up sleeve designs, and some items are recognized as Hip Healthy by the International Hip Dysplasia Institute.