King Size Memory Foam Mattress

We have a king size memory foam mattress that we want to convert size mattress for our 2 children. We do not know the type of tool would be better to use.

I have not tried memory foam cutting, but with other types of foam, I used an electric knife.

I would say a knife.

Bandsaw first cut holes with the drill about three inches
then take the bandsaw and cut in half

A bread knife, serrated blade great OR ANY

An electric knife, like the ones you use to carve a turkey or if you do not then try one of these chainsaw

Try a carving knife, the kind you use power to make the Thanksgiving turkey ... Make sure to cut top and bottom srtaight (verticle. .. right) or it'll get like crap once you sheets ...