Sealy Nelson Plush Mattress is the most indulgent feel within the Elevate Collection, designed for those who want a deeply cushioned, luxurious sleep experience. With its plush comfort and enhanced depth, it allows you to sink into softness while still benefiting from intelligent, responsive support. At the heart of the mattress is Sealys AlignSupport spring system, a two-stage design that senses your body shape and responds with personalised support to help maintain natural posture and spinal alignment. Reinforced with UniCased edge support, the mattress provides a stable, edge-to-edge sleeping surface, eliminating roll-off and maximising usable space. Comfort is layered to deliver true luxury. The ComfortCore targets the hips and lower back for focused pressure relief, while a double layer of InfiniLux foam adds premium softness and resilience. Additional layers of medium foam enhance the plush feel, creating a balanced combination of cushioning and support. BasePlank technology further strengthens the mattress while allowing air to circulate freely for a fresher sleep. Finished with bold, expertly crafted fabric, Nelson Luxury Plush is woven with SmarTex to help regulate temperature and ProShield to protect against allergens, ensuring a cooler, cleaner sleep environment. Handmade in Britain and backed by a 7-year guarantee, its a refined blend of comfort, craftsmanship and performance. Medium Good for people who change their sleeping position. Mattress depth34cm. Key Features:. *Plush feel deep, luxurious comfort for a softer sleep *AlignSupport coil system personalised support and spinal alignment *UniCased edge support stable, edge-to-edge sleeping surface *ComfortCore centre targeted pressure relief for hips and lower back *Double InfiniLux layers premium softness with lasting resilience *Additional medium foam layers enhanced plush comfort *BasePlank foundation improves airflow and durability *SmarTex fabric helps regulate temperature *ProShield protection guards against allergens Allergy UK endorsed *Handmade in Britain with a 7-year guarantee Dimensions:. *W 135cm x D 190cm x H 34cm - Double 135cm *W 90cm x D 190cm x H 34cm - Single 90cm *W 150cm x D 200cm x H 34cm - Kingsize 150cm *W 180cm x D 200cm x H 34cm - Superking 180cm Important Information:. Please note that pocket sprung mattresses must not be used with a base for which they are not designed. Slats on a bed frame should be no more than 70mm apart, to ensure the mattress receives adequate support. Failure to use an adequate base could invalidate the warranty from the manufacturer. Please check with us for more details.