snug

A small secluded room.

Fitting closely but comfortably.

Enjoying or affording comforting warmth and shelter especially in a small space.

“snug in bed”

“a snug little apartment”

Offering safety; well protected or concealed.

“a snug harbor”

“a snug hideout”

Well and tightly constructed.

“a snug house”

“a snug little sailboat”