Baby Sleeper TENCEL™ - Mermaids

After the bath, before the bottle — the sleeper is the hinge of the whole evening routine.

Watercolour mermaids — the soft-pastel under-the-sea pattern.

Forbes named these the best baby pajamas in 2025. The sleeper is the workhorse of the under-layer — soft against the skin, quick to change in the dark, and built to survive the laundry a newborn puts it through.

Material. TENCEL™ Lyocell with a touch of spandex for stretch. TENCEL™ is the wood-pulp fiber Lenzing spins in a closed-loop process that recycles 99% of its water and solvents, certified to OEKO-TEX Standard 100.

The print. Ivory ground with watercolour mermaids in pastel pink and peach with brown hair, peach binding.

Construction. Fold-over cuffs cover the hands for the first few months — no mittens to lose — then fold back when the baby wants them free. A two-way zipper runs chin to ankle and opens from the bottom for diaper changes, the neckline is tagless, and the shoulder and crotch seams are reinforced where a sleeper gets pulled on and off twice a day.

Sleepers and sleep bags work together. The sleeper is the layer underneath — it isn't meant to provide the warmth on its own. Pair with a 1.0 TOG TENCEL™ Sleep Bag for a 21–24°C nursery, a 0.5 TOG muslin sleep bag for 24–27°C, or wear alone in a warm room above 24°C if the baby protests the sleep bag.

Why TENCEL™ for a sleeper. A sleeper is worn most nights and washed two or three times a week, so we match the fiber to the job: TENCEL™ Lyocell keeps its softness and shape through heavy laundering. Our muslin pieces answer a different brief — swaddles, crib sheets, and 0.5 TOG bags use Tanboocel® Bamboo Viscose for breathability in the heat.

Sizing. 0–3M, 3–6M, 6–9M, 9–12M, 12–18M, 18–24M. Size to current measurement. A sleeper that's too long bunches at the hands and ankles and rides up overnight.

Care. Machine wash cold and tumble dry low. Don't bleach, and don't iron the printed areas. A baby's laundry schedule is relentless; TENCEL™'s surface doesn't notice.

Safety & certification. Tested to Health Canada's Children's Sleepwear Regulations (SOR/2016-169), and to CPSIA and ASTM standards. The material is certified to OEKO-TEX Standard 100, and Loulou Lollipop is a Certified B Corporation.

Browse all TENCEL™ baby pajamas & TENCEL™ sleepers.

Free shipping across Canada over $100. Loulou Lollipop is Canadian owned and designed in Vancouver. Free 30-day returns on unworn items in original packaging.

Part of the Big Dreams Sleep System. Sleepers and sleep bags in Mermaids are built to layer together through the night — same print, one system. Complete the set with the Tanboocel® Bamboo Viscose 0.5 TOG Sleep Bag and TENCEL™ 1.0 TOG Sleep Bag.