GRECO STROM's Bonnell range provides great strength, stability and above all orthopaedic properties, as it consists of layers made with a core of springs with specially formulated European antioxidant steel. These springs are usually arranged in rows and joined together by a helical wire. Each of the Bonnell mattresses in the Hypnatura range can guarantee the ultimate in orthopaedic support.

GRECO STROM's range of foam elastics is renowned for its diverse and innovative high density foam materials with excellent durability. Mattresses without springs that allow air to circulate due to the perforated materials they contain, causing excellent rebound. Every single foam elastic mattress in the Hypnatura series gives the ultimate feeling of comfort and relaxation.

Hypnatura's Pocket series offers the ultimate in anatomical behaviour. Pocket springs offer ideal anatomical behaviour, they are not joined together but are placed in rows of fabric pockets, like pockets. Each of the pocket springs mattresses in the Hypnatura range gives the feeling of hugging the body, offering a unique feeling of total relaxation and sleep enjoyment.