The Westie answer for heatwaves and cold snaps
A West Highland White Terrier is most comfortable indoors near 66 to 74 degrees during a summer heatwave and near 66 to 72 degrees during a winter cold snap, sleeping on a sheltered bed with a light blanket, a dry coat, and water close by. That steady range reflects a Westie's double coat and compact, muscular frame: the harsh outer coat and soft undercoat insulate against cold when the coat is dry and combed out, yet the same layers trap heat in a still, sunny room. A Westie is a hardy small dog, but hardiness outdoors in wind and wet does not translate into comfort in a hot bedroom, and a damp coat indoors loses the insulation it provides outside.
Why a dry double coat matters more than the reading
A West Highland White Terrier's coat works by trapping air in two layers, and that mechanism fails when the undercoat is matted, damp, or packed with shed hair. In summer, a neglected undercoat holds warm, humid air against the skin and can irritate it, especially in the armpits, belly, and beard where moisture collects. In winter, a wet Westie coming in from rain or snow carries that dampness into the bed, and the coat then chills the dog it should be warming, while the beard and leg furnishings stay wet longest. Brushing out loose undercoat, drying the legs and beard thoroughly after walks, and keeping the bed bedding itself dry restore the coat's insulation in both seasons.
Setting up summer sleeping for a West Highland White Terrier
In a heatwave, place the Westie's bed in a cool, shaded room away from sunlit windows, with a breathable cover and a raised edge the terrier can rest its chin on. A fan moving air across the room, rather than aimed directly at the bed, prevents a still, stuffy corner without drying the eyes. Keep a water bowl beside the bed in a mat that catches drips, because a Westie's beard carries water back to the bedding and a damp bed quickly becomes an uncomfortable one. Avoid beds in conservatories, lofts, or rooms under a hot roof, and open the bedroom door so the dog can choose a cooler hallway floor if it prefers.
Setting up winter sleeping for a West Highland White Terrier
In a cold snap, move the bed against an inside wall, away from exterior doors and the cold air that slides under them, and add a light blanket the Westie can rearrange. A bed of moderate height suits a Westie's short legs and sturdy build, letting the dog step in without jumping yet keeping the pad clear of a cold floor. Dry the coat to the skin after every wet or snowy outing, paying particular attention to the skirt and legs, which collect snow and grit. Keep the bed away from a radiator that would dry the skin and coat on one side, and check that bedding is washed and fully dry before it goes back, since a Westie's skin can react to damp, dirty fabric.
Signs the room needs adjusting for your Westie
Watch for panting at rest, sprawling on a cool floor, leaving the bed for tiles, or scratching and restlessness in a warm room, all of which suggest heat or a coat that needs attention. In winter, shivering, curling tightly, burrowing into blankets, or a damp, musty coat after coming indoors point to cold or to bedding and grooming that need fixing first. Skin is an early warning for this breed in both seasons: redness, flaking, or a sour smell from the beard and belly mean the environment and coat care need review, not just a temperature change. Recording the Westie's draught-free bed position and drying routine in KinsLe with Family Sharing helps family and sitters keep the same corner, coat care, and bedding through both extremes.