Alternative to DryNites

[sarahloopylou]

My DD 6.5 is in DryNites every night but they are too expensive. Does anyone know of any ordinary nappies that are suitable for older kids, are cheaper and don't leak?

I have no experience but I think I read somewhere that if they're over a certain age you can get something similar on prescription?

My 5 year old wears the largest size supermarket brands. He fits into both Tescos size 6 or asda 6+, although he is very skinny. My 14 year old is still in drynites and it costs a bomb so I'm keeping my youngest in normal nappies for as long as possible.