My daughter is nearly 3 and she still wears a nappy to bed to avoid this problem.... When my son was around the same age I started to get him out of bed around 11pm, just before I went to bed, to put him on the toilet for a wee. It always worked and he has NEVER ever wet the bed!  I think we were pretty lucky with him..........

Hi,

I have never used one of the mats you are talking about,  but if you wanna do it on the cheap i would suggest getting an old shower curtain and placing that between the mattress and sheet. It is a cheap alternative to the expensive matress protectors. 

 I hope this has helped you in some way

I know you said you cant go and buy a new plastic, but have you looked at coles? I assume they are Aust wide. I got one for my kids beds for $4 each.

but yeah as winnie said with the pul stuff. make just like you would a quilt but you can overlock the edge instead of binding it

Crumbs, I am thinking how to put this into words. I used standard single bed sheet, cut down to 3ft on the long, then the waterpoof, then two layers of absorbant material. Firstly diamond quilt the absorbant layers, then attach to waterproof layer by folding over WP layer and hem the edge. You should be left with a bed mat square that is the width of the bed. Attach to your strip sheet, by sewing onto the hem of the square. You can then tuck this over the normal sheet in the best area for your childs sleeping position. LOL I dont think I explained that very well. You can make a few, and they dry very quickly when washed.

Any way some one might come up with a better idea,hehe. Luv Winnie.xxxx