We have bought a shaker style single bed for my daughter which is effectively a bed frame. When we went to use the Tomy bed rail it does n't seem possible to use this as it needs to fit between the mattress and a duvan (i.e. it is no good for bed frames). Does anyone use this bed rail with a bed frame? If so how? If not please can they let me know what kind of rail they use with a bed frame bed? Thanks very much.