へやぎ
部屋着 dressing gown loungewear

へやずみ
部屋住み an adult-age eldest son who has yet to come into his inheritance (a young adult still) living at home a dependent

へやだい
部屋代 room rent

へやわり
部屋割り assignment of rooms

へやをあける
部屋を空ける to clear a room

へやをあたためる
部屋を暖める to heat the room

へやをちらかす
部屋を散らかす to litter a room (with things)