In the 1960's most in barracks were either on leave after seatime. doing courses like fire fighting , on general working parties or manning the gates and doing other duties.
The barracks were built in victorian times or earlier, junior rates mess blocks were on either two or three levels about 30-40 double bunks with straw mattresses and the only heating was a pot bellied coal stove every 20 odd feet on one side so basically freezing in winter and each pot bellied had about 3 or 4 armchairs around them.
1965 on HMS Adamant was the last ship i served on with hammocks for all junior rates