There is definitely no "sleeping quarters" in any fire department buildings in the town of Newtown (Sandy Hook is a small section of Newtown.) Why? Because the Fire Department is 10% VOLUNTEER.

This is a point numerous GLP'eople have not realized. So, for example, when the Sandy Hook firefighter who said he was "across town" when he first saw the helicopters and the sirens, and decided to rush to the firehouse, that is potentially plausible. That firehouse rarely or never has someone stationed inside of it, waiting for fire alarms to be called. Instead, the 100% volunteer fire department throughout the town all have single blue sirens which they can put in their dashboard when their cellphone or pager alerts them that they are needed to respond to the firehouse.
This is very common in small towns and villages throughout Connecticut, to have a 100% volunteer fire department.