Who needs a Bonnell spring mattress The answer is someone who wants a relatively firm and comfortable sleeping surface. That is what you get with our Giselle Beddings Glay Series Bonnell Spring Mattress. The Bonnell spring system uses hourglass-shaped springs to provide better support for your body more resilience and better ventilation. Our mattress delivers all the above with a level of comfort that surpasses expectations and a medium firmness that many Australians desire. The mattress is meticulously constructed with layers of premium materials. High-density foam fills the inside of the mattress in-between the stable Bonnell spring core and a soft quilting layer rests on top. Essentially you get a solid mattress that retains its shape well for long-lasting use while still being supple and comfortable for you to enjoy all its inherent benefits. As with our quality mattresses this mattress is hypo-allergenic and treated for dust and mould resistance. To enjoy the best sleeping experie