The Calmm Kids Long Sleeve Nightwear Set in Navy is a long-sleeve pyjama set for boys and girls aged 5 to 14 years, made from LENZING™ Modal (95%) with 5% Polyurethane. The Modal fabric is considerably softer than standard cotton jersey, naturally breathable, and holds its softness and shape after repeated washing — a meaningful advantage for a set that will be worn most nights of the week.

Navy is one of the most practical and enduring colours for children’s nightwear — it doesn’t show wear as quickly as lighter colours, washes well without fading visibly, and works for both boys and girls without being gender-specific. The long-sleeve design makes it suitable year-round, and the clean, unfussy styling means it works across a wide age range from 5 to 14. A matching adult version is available via the For Mom collection, making it a strong option for coordinated family nightwear. Also available in Pink and Green.

Key Details:

• Brand: Calmm
• Style: Long Sleeve Nightwear Set (Top & Bottoms)
• Colour: Navy multicoloured print
• Material: 95% LENZING™ Modal, 5% Polyurethane
• Gender: Unisex (Boys & Girls)
• Sizes: XS (5–6 Yrs), 7–8 Yrs, 9–10 Yrs, 11–12 Yrs, 13–14 Yrs
  
• Season: Nonseasonal
• Also available in: Pink, Green

Buying Advice:

Navy is the most practical colourway in the Calmm long-sleeve nightwear range for everyday use — it shows less visible wear between washes than lighter colours and maintains its appearance over time. LENZING™ Modal is naturally breathable, so the long-sleeve cut won’t feel heavy or clammy in warmer conditions. The 5% Polyurethane adds gentle stretch for a more forgiving fit across different body shapes. Sizing is relaxed and true to age; size up if your child is tall or between sizes. A well-made pyjama set in a clean, neutral colourway also doubles as a relaxed at-home outfit for lazy mornings or low-key days at home.