Features we love Medium comfort with a quilted mattress top adding softnessSemi-orthopaedic design qualities provide enhanced supportDouble sided - flipping and rotating your mattress will help it wear evenlyHigh loft polyester filling provides enhanced softness and resilienceAir vents enhance airflow keeping the mattress freshSuitable for all types of bed basesApproved by the National Bed Federation All about meWith an open coil spring system high loft polyester filling and semi-orthopaedic design qualities the Nula mattress has a medium comfort level delivering a supportive and comfortable nights rest. It has vents for enhanced air flow keeping the high loft polyester filling fresh expelling any stale odours before they build up.The mattress is double sided so you can give it a regular flip and rotate to help it wear evenly effectively prolonging its lifespan It's suitable for all types of bed bases although be cautious when purchasing it for a bunk or midsleeper as it has a thick depth of 24cm.You can rest assured with the Nula mattress it's been made in the UK tested to meet British standard regulations its NBF approved and it comes with a one year warrantyNeed to know . Dimensions . H24 x W90 x D190 cm Weight . 16 kg Size . Standard UK single (3ft) Comfort . Medium Type . 13.5 Gauge coil spring unit Filling . High loft polyester Finish . Quilted damask cover Double sided . YesMade in the UKTested to meet British Standard Regulations BS71771 Year warrantyMore sizes available .