A 65° afternoon and a 34° night can land on the same day. That swing — not the cold — is what makes fall hard on a horse.
Most tack rooms are set up for two seasons: there’s a mid or heavyweight blanket for winter, and there’s nothing. So when the first cold night arrives, the heavies comes out. By morning the horse has sweated underneath it — and a damp coat under a rug pulls heat away faster than no turnout or stable blanket at all. That’s how a well-meant blanket ends up doing more harm than none.
A lightweight turnout or stable blanket is what fills that gap — and it’s sometimes the blanket most horses end up wearing more than any other as Spring weather at the tail end of winter has the same issue. | 
