Tippitoes Littondale Cot/Bed Specification.. As with the Cot the 'Littondale' Cot/Bed is manufactured from Beech Wood. With a three position mattress base it transforms from a Cot into a Bed allowing children to make a smooth transition from Cot to bed, it also prolongs useful life up to the age of 5 or 6. Will fit a 140mm x 70mm mattress which is not included.