Nuna® DEMI™ Next Sibling Seat


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Nuna® DEMI™ Next Sibling Seat

Transform your Nuna DEMI Next single stroller into a double stroller by adding the Nuna DEMI Next Sibling Seat, the ultimate accessory for growing families.  The Sibling seat connects easily to the DEMI Next stroller frame in the top or lower position and becomes a duplicate of the main seat.  With both forward-facing and rear-facing options, this all-season seat is suitable for babies and toddlers from birth up to 50 lbs or 45 inches. 

Made with premium materials, this sturdy seat features a four-position recline and adjustable calf and footrest support for optimal comfort. A removable zip-to-extend, water-repellent UPF 50+ Aire protect canopy shields riders from sun and wind, while the Sky drape mesh cover offers added protection from the elements.  

What's Included:

  • Nuna Demi Next Sibling Seat
  • Rain cover

Key Features:

  • Four recline positions easily adjust with just one hand
  • Self-guiding MagneTech secure snap™ buckles automatically lock into place
  • One-hand adjustable calf support and footrest to accommodate growth
  • Simple install in lower basket area with no adapters needed
  • Quick-release 3 to 5-point harness makes it easy to fasten them in
  • Water-repellent UPF 50+ Aire protect canopy™ protects from the elements
  • No-rethread harness makes it easy to adjust for comfort and growth
  • Included rain cover for when the weather doesn't cooperate
  • Integrated footrest on seat for added comfort
  • Rotating and removable armbar fits kids of all sizes
  • Easily removable Merino wool insert provides ultra-soft comfort
  • Built-in privacy drape and ventilation panels in the canopy for ideal airflow


  • Recommended use: Birth to 50 pounds (height 45 inches) maximum
  • Product weight: 8 pounds (excludes winter seat)
  • Nuna's Manufacturer warranty from defects 2 years 
  • Compatible with both DEMI Next and DEMI Grow strollers
  • When using the stroller frame with the bassinet or infant carrier, refer to the child usage requirements listed in those instruction manuals.