We bought two “Brolly Sheets ” online for $50 including postage and they have been worth every penny after two years.
Not only do they save us sheet washing but they save our preschoolers’s expensive, new mattresses and wool underlays. They can be easily whipped off and changed in the wee hours. You will often have to wash your top sheet though but my fitted undersheet is ALWAYs dry-amazing. That’s another reason for buying the set of two. However, with two kids on brolly sheets I have been known to pop a fresh, bathtowel on top of a wet brolly sheet to keep my child dry until morning. They come in nice, bright unisex colours (not faded yet after countless hot washes) and can confidently accompany your child on sleepovers.
Things that made me go hmmmm
Note that when you wash them they can retain a lot of water so you might want to give it an extra spin.
I’ve not heard of a better product. It would also be a brilliant nappy changing mat or tummy time mat as it catches dribbles.