A supporting mattress with springs offering long-lasting comfort and support. The springs feature a felt layer for added comfort With the John Lewis Spring mattresses we include an extra Innercare cover. The inner cover makes removing and replacing the outer cover quick and simple and can be used while the outer cover is in the wash. So in the middle of the night when you and your baby want to get back to sleep after a night time accident, the inner cover provides a suitable water-resistant surface if the outer cover needs to be removed. The mattress has a three dimensional fabric on one side and the dent-resistant orthopaedic foam ensures the mattress stays more comfortable for longer and extending the life of the mattress. The fabric promotes air circulation and assists breathability. It also draws fluid away from baby's body for comfort and safety. The bottom of the outer cover is made from a waterproof yet vapour-permeable fabric, excellent for older children when toilet training, while also significantly reducing sweating. The inner cover is made from a non-sweat water-repellent fabric, helping your little one stay comfortable throughout the night. Optimise baby's sleep by partnering your purchase with a mattress protector from our comprehensive range.