I have 4 NESTIG “mini” crib sheet and 2 waterproof nesting mini crib mattress cover. All were hardly ever used no stains on any of them. Luckily my baby never wet the bed or spit up (blessed) and moved into her full size crib after only 1 month. 2 teal color sheets, one polka dot and one rainbow. Size for mini crib is 51x70cm or 20x 27.5 in