Switched from 1mg of klonopin for sleep to 20mg of valium. Is this a comparable switch?

Valium. Is considered medium duration and more effective (I.e. addictive) than clonazepam. In terms of efficacy, Valium should work better for sleep. But there are safer less addictive alternatives for treating insomnia such as Ambien, Remeron, Trazodone and even antipsychotics such as Seroquel. Please see your healthcare provider about these options.