Bring this to the shower and watch the practical parents nod.Watercolor mermaids — the soft-pastel under-the-sea pattern.It's the two pieces you'll reach for every night of the first six months — a TENCEL™ sleeper as the under-layer and a muslin sleep bag over it — matched in one print and priced below buying them apart.The print. Ivory ground with watercolor mermaids in pastel pink and peach with brown hair, peach binding.How the two pieces work together. The sleeper handles the under-layer warmth at 69–73°F nursery overnight. The sleep bag carries the 1.0 TOG number. Together they're the working sleep set for the most common US nursery temperature overnight. Add a 0.5 TOG muslin bag for warm summer rooms or a 2.5 TOG for cold winter rooms and you've covered the full temperature range — but most households start with this set and add on later.Materials. TENCEL™ Lyocell throughout. Wood-pulp fiber from Lenzing produced in a closed-loop process — 99% of water and solvents recycled. OEKO-TEX Standard 100 certified. The 1.0 TOG bag includes DuPont™ Sorona insulation, a plant-based polymer from corn-derived feedstock that holds warmth without adding bulk. Both fibers hold their hand through multiple washes, which is why the bundle ends up still in rotation at 18 months instead of in the donation pile.Why start here. The sleeper and the muslin bag are the two pieces in rotation every night of the first six months. Matched, they mean one print, the right layers, and nothing to figure out at 2 a.m.Adjacent products. The 0.5 TOG Muslin Sleep Bag in Mermaids extends the set to warm summer nurseries above 75°F. The 2.5 TOG TENCEL™ Sleep Bag handles cold winter rooms below 68°F. For walking toddlers past the closed-leg sleep bag, the matching 1.0 TOG sleepsuit is the next step.Sizing. Sleeper 0–3M, 3–6M, 6–9M. Sleep bag 0–6M (8–18 lb), 6–18M (18–28 lb). Size to current weight.Care. Machine wash cold, tumble dry low. Both pieces hold up through repeated washing. Do not bleach. Do not iron printed panels.Safety & certification. AAP safe-sleep compliant and tested to CPSC, CPSIA, and ASTM standards. The material is certified to OEKO-TEX Standard 100, and Loulou Lollipop is a Certified B Corporation. Common questions Why bundle instead of buying separately? Because the pieces are designed to work together — a sleeper as the under-layer, a 1.0 TOG sleep bag for everyday nights, a 0.5 TOG for warm nights — so you don't end up with mismatched weights for the same room temperature. What's the difference between the starter bundle and the gift bundle? The starter bundle is built for the household using the pieces immediately — sleeper plus 1.0 TOG bag. The gift bundle adds a swaddle and a 0.5 TOG bag, packaged for the registry. Both include the same materials and certifications. The gift version is the one that arrives looking like someone thought about it. Is the bundle returnable if the print doesn't match the nursery? Yes — unworn, unwashed, in original packaging, within 30 days. The bundle is treated as one item for returns. Free returns on US orders. Browse all sleep bundles.Free US shipping over $65. Free 30-day returns on unworn items in original packaging.
