When we are home I let them out to the backyard every hour most of the time. At night I get up around 3 am to let them pee. When we are at work they are in their crates hubby and me come home at different lunch times (thank goodness for living so close to work) so they are only in their crates about 4 hours and then they pee.
I know they can hold their pee long periods of time, but I feel guilty at nights if I don't get up and let them relive themselves b/c thier bladders are so small
