As Alexander has suddenly outgrown his crib, it's time for the big cot and as with Oliver we bought a Cot bed, this time a Lucia Cot/ Toddler bed from Mamas & Papas which we love. Mamas and Papas kindly sent us their Sleepfresh Natural Mattress, Size 400 Cot/Bed (£185) which fits the cot, for review.